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class="toggle"> <ol><li><a href="/ja/docs/Glossary/Abstraction">Abstraction (抽象化)</a></li><li><a href="/ja/docs/Glossary/Accent">Accent (強調色)</a></li><li><a href="/ja/docs/Glossary/Accessibility">Accessibility (アクセシビリティ)</a></li><li><a href="/ja/docs/Glossary/Accessibility_tree">Accessibility tree (アクセシビリティツリー)</a></li><li><a href="/ja/docs/Glossary/Accessible_description">Accessible description (アクセシブル説明)</a></li><li><a href="/ja/docs/Glossary/Accessible_name">Accessible name (アクセシブル名)</a></li><li><a href="/ja/docs/Glossary/Adobe_Flash">Adobe Flash</a></li><li><a href="/ja/docs/Glossary/Advance_measure">Advance measure (送り幅)</a></li><li><a href="/ja/docs/Glossary/AJAX">AJAX</a></li><li><a href="/ja/docs/Glossary/Algorithm">Algorithm (アルゴリズム)</a></li><li><a href="/ja/docs/Glossary/Alignment_Container">Alignment container (配置コンテナー)</a></li><li><a href="/ja/docs/Glossary/Alignment_Subject">Alignment subject (配置対象物)</a></li><li><a href="/ja/docs/Glossary/Alpha">Alpha (アルファチャンネル)</a></li><li><a href="/ja/docs/Glossary/ALPN">ALPN</a></li><li><a href="/ja/docs/Glossary/API">API</a></li><li><a href="/ja/docs/Glossary/Apple_Safari">Apple Safari</a></li><li><a href="/ja/docs/Glossary/Application_context">Application Context (アプリケーションコンテキスト)</a></li><li><a href="/ja/docs/Glossary/Argument">Argument (実引数)</a></li><li><a href="/ja/docs/Glossary/ARIA">ARIA</a></li><li><a href="/ja/docs/Glossary/ARPA">ARPA</a></li><li><a href="/ja/docs/Glossary/Arpanet">ARPANET</a></li><li><a href="/ja/docs/Glossary/Array">Array (配列)</a></li><li><a href="/ja/docs/Glossary/ASCII">ASCII</a></li><li><a href="/ja/docs/Glossary/Aspect_ratio">Aspect ratio (アスペクト比)</a></li><li><a href="/ja/docs/Glossary/Asynchronous">Asynchronous （非同期）</a></li><li><a href="/ja/docs/Glossary/ATAG">ATAG</a></li><li><a href="/ja/docs/Glossary/Attribute">Attribute (属性)</a></li><li><a href="/ja/docs/Glossary/Authentication">Authentication</a></li><li><a href="/ja/docs/Glossary/Authenticator">Authenticator</a></li><li><a href="/ja/docs/Glossary/Bandwidth">Bandwidth (帯域幅)</a></li><li><a href="/ja/docs/Glossary/Base64">Base64</a></li><li><a href="/ja/docs/Glossary/Baseline">Baseline</a></li><li><a href="/ja/docs/Glossary/Beacon">Beacon (ビーコン)</a></li><li><a href="/ja/docs/Glossary/Bezier_curve">Bézier curve (ベジェ曲線)</a></li><li><a href="/ja/docs/Glossary/bfcache">bfcache</a></li><li><a href="/ja/docs/Glossary/BiDi">BiDi (双方向)</a></li><li><a href="/ja/docs/Glossary/BigInt">BigInt</a></li><li><a href="/ja/docs/Glossary/Binding">Binding （バインド）</a></li><li><a href="/ja/docs/Glossary/Bitwise_flags">Bitwise flags (ビットフラグ)</a></li><li><a href="/ja/docs/Glossary/Blink">Blink</a></li><li><a href="/ja/docs/Glossary/blink_element">blink element (<blink> tag)</a></li><li><a href="/ja/docs/Glossary/Block">Block (ブロック)</a></li><li><a href="/ja/docs/Glossary/Block_cipher_mode_of_operation">Block cipher mode of operation (暗号利用モード)</a></li><li><a href="/ja/docs/Glossary/Block-level_content">Block-level content (ブロックレベルコンテンツ)</a></li><li><a href="/ja/docs/Glossary/Boolean">Boolean</a></li><li><a href="/ja/docs/Glossary/Bounding_box">Bounding Box (バウンディングボックス)</a></li><li><a href="/ja/docs/Glossary/Breadcrumb">Breadcrumb (パンくずリスト)</a></li><li><a href="/ja/docs/Glossary/Brotli_compression">Brotli</a></li><li><a href="/ja/docs/Glossary/Browser">Browser (ブラウザー)</a></li><li><a href="/ja/docs/Glossary/Browsing_context">Browsing context (閲覧コンテキスト)</a></li><li><a href="/ja/docs/Glossary/Buffer">buffer (バッファー)</a></li><li><a href="/ja/docs/Glossary/Cache">Cache(キャッシュ)</a></li><li><a href="/ja/docs/Glossary/Cacheable">Cacheable (キャッシュ可能)</a></li><li><a href="/ja/docs/Glossary/CalDAV">CalDAV</a></li><li><a href="/ja/docs/Glossary/Call_stack">Call stack (コールスタック)</a></li><li><a href="/ja/docs/Glossary/Callback_function">Callback function (コールバック関数)</a></li><li><a href="/ja/docs/Glossary/Camel_case">Camel case (キャメルケース)</a></li><li><a href="/ja/docs/Glossary/Canonical_order">Canonical order (正規順序)</a></li><li><a href="/ja/docs/Glossary/Canvas">Canvas</a></li><li><a href="/ja/docs/Glossary/Card_sorting">Card sorting (カードソート)</a></li><li><a href="/ja/docs/Glossary/CardDAV">CardDAV</a></li><li><a href="/ja/docs/Glossary/Caret">caret (キャレット)</a></li><li><a href="/ja/docs/Glossary/CDN">CDN</a></li><li><a href="/ja/docs/Glossary/Certificate_authority">Certificate authority (認証局)</a></li><li><a href="/ja/docs/Glossary/Certified">Certified</a></li><li><a href="/ja/docs/Glossary/Challenge">Challenge-response authentication (チャレンジレスポンス認証)</a></li><li><a href="/ja/docs/Glossary/Character">Character (文字)</a></li><li><a href="/ja/docs/Glossary/Character_encoding">Character encoding (文字エンコーディング)</a></li><li><a href="/ja/docs/Glossary/Character_reference">Character reference</a></li><li><a href="/ja/docs/Glossary/Character_set">Character set (文字コード)</a></li><li><a href="/ja/docs/Glossary/Chrome">Chrome (クローム)</a></li><li><a href="/ja/docs/Glossary/CIA">CIA（Confidentiality, Integrity, Availability）</a></li><li><a href="/ja/docs/Glossary/Cipher">Cipher (サイファー)</a></li><li><a href="/ja/docs/Glossary/Cipher_suite">Cipher suite (暗号スイート)</a></li><li><a href="/ja/docs/Glossary/Ciphertext">Ciphertext (暗号文)</a></li><li><a href="/ja/docs/Glossary/Class">Class (クラス)</a></li><li><a href="/ja/docs/Glossary/Clickjacking">Clickjacking</a></li><li><a href="/ja/docs/Glossary/Closure">Closure (クロージャ)</a></li><li><a href="/ja/docs/Glossary/Cloud">Cloud</a></li><li><a href="/ja/docs/Glossary/Cloud_computing">Cloud computing</a></li><li><a href="/ja/docs/Glossary/CMS">CMS</a></li><li><a href="/ja/docs/Glossary/Code_point">Code point (コードポイント)</a></li><li><a href="/ja/docs/Glossary/Code_splitting">Code splitting (コード分割)</a></li><li><a href="/ja/docs/Glossary/Code_unit">Code unit (コード単位)</a></li><li><a href="/ja/docs/Glossary/Codec">Codec (コーデック)</a></li><li><a href="/ja/docs/Glossary/Color_space">Color space (色空間)</a></li><li><a href="/ja/docs/Glossary/Color_wheel">Color wheel (色相環)</a></li><li><a href="/ja/docs/Glossary/Compile">Compile (コンパイル)</a></li><li><a href="/ja/docs/Glossary/Compile_time">Compile time (コンパイル時間)</a></li><li><a href="/ja/docs/Glossary/Composite_operation">Composite operation (合成演算)</a></li><li><a href="/ja/docs/Glossary/Computer_Programming">Computer Programming (コンピュータープログラミング)</a></li><li><a href="/ja/docs/Glossary/Conditional">Conditional (条件式)</a></li><li><a href="/ja/docs/Glossary/Constant">Constant (定数)</a></li><li><a href="/ja/docs/Glossary/Constructor">Constructor (コンストラクター)</a></li><li><a href="/ja/docs/Glossary/Content_header">Content header (コンテンツヘッダー)</a></li><li><a href="/ja/docs/Glossary/Continuous_Media">Continuous Media (連続的メディア)</a></li><li><a href="/ja/docs/Glossary/Control_flow">Control flow (制御フロー)</a></li><li><a href="/ja/docs/Glossary/Cookie">Cookie</a></li><li><a href="/ja/docs/Glossary/Copyleft">Copyleft (コピーレフト)</a></li><li><a href="/ja/docs/Glossary/CORS">CORS</a></li><li><a href="/ja/docs/Glossary/CORS-safelisted_request_header">CORS-safelisted request header (CORS セーフリストリクエストヘッダー)</a></li><li><a href="/ja/docs/Glossary/CORS-safelisted_response_header">CORS-safelisted response header (CORS セーフリストレスポンスヘッダー)</a></li><li><a href="/ja/docs/Glossary/Crawler">Crawler (クローラー)</a></li><li><a href="/ja/docs/Glossary/Credential">Credential</a></li><li><a href="/ja/docs/Glossary/CRLF">CRLF</a></li><li><a href="/ja/docs/Glossary/Cross_Axis">Cross Axis (交差軸)</a></li><li><a href="/ja/docs/Glossary/Cross-site_scripting">Cross-site scripting (クロスサイトスクリプティング)</a></li><li><a href="/ja/docs/Glossary/CRUD">CRUD</a></li><li><a href="/ja/docs/Glossary/Cryptanalysis">Cryptanalysis (暗号解読)</a></li><li><a href="/ja/docs/Glossary/Cryptographic_hash_function">Cryptographic hash function (暗号学的ハッシュ関数)</a></li><li><a href="/ja/docs/Glossary/Cryptography">Cryptography (暗号学)</a></li><li><a href="/ja/docs/Glossary/CSP">CSP</a></li><li><a href="/ja/docs/Glossary/CSRF">CSRF</a></li><li><a href="/ja/docs/Glossary/CSS">CSS</a></li><li><a href="/ja/docs/Glossary/CSSOM">CSS Object Model (CSSOM)</a></li><li><a href="/ja/docs/Glossary/CSS_pixel">CSS pixel</a></li><li><a href="/ja/docs/Glossary/CSS_preprocessor">CSS preprocessor (CSS プリプロセッサー)</a></li><li><a href="/ja/docs/Glossary/CLS">Cumulative Layout Shift (CLS)</a></li><li><a href="/ja/docs/Glossary/Data_structure">Data structure (データ構造)</a></li><li><a href="/ja/docs/Glossary/Database">Database</a></li><li><a href="/ja/docs/Glossary/Debounce">Debounce (デバウンス)</a></li><li><a href="/ja/docs/Glossary/Decryption">Decryption (復号)</a></li><li><a href="/ja/docs/Glossary/Deep_copy">Deep copy (ディープコピー)</a></li><li><a href="/ja/docs/Glossary/Delta">Delta (デルタ)</a></li><li><a href="/ja/docs/Glossary/Denial_of_Service">Denial of Service (サービス拒否)</a></li><li><a href="/ja/docs/Glossary/Deno">Deno</a></li><li><a href="/ja/docs/Glossary/CSS_Descriptor">Descriptor (CSS) (記述子)</a></li><li><a href="/ja/docs/Glossary/Deserialization">Deserialization (デシリアライズ)</a></li><li><a href="/ja/docs/Glossary/Developer_Tools">Developer Tools (開発者ツール)</a></li><li><a href="/ja/docs/Glossary/Digest">Digest</a></li><li><a href="/ja/docs/Glossary/Digital_certificate">Digital certificate (デジタル証明書)</a></li><li><a href="/ja/docs/Glossary/Digital_signature">Digital signature</a></li><li><a href="/ja/docs/Glossary/Distributed_Denial_of_Service">Distributed Denial of Service</a></li><li><a href="/ja/docs/Glossary/DMZ">DMZ</a></li><li><a href="/ja/docs/Glossary/DNS">DNS</a></li><li><a href="/ja/docs/Glossary/Doctype">Doctype</a></li><li><a href="/ja/docs/Glossary/Document_directive">Document directive (文書ディレクティブ)</a></li><li><a href="/ja/docs/Glossary/Document_environment">Document environment (文書環境)</a></li><li><a href="/ja/docs/Glossary/DOM">DOM (Document Object Model)</a></li><li><a href="/ja/docs/Glossary/Domain">Domain (ドメイン)</a></li><li><a href="/ja/docs/Glossary/Domain_name">Domain name (ドメイン名)</a></li><li><a href="/ja/docs/Glossary/Domain_sharding">Domain sharding (ドメインシャーディング)</a></li><li><a href="/ja/docs/Glossary/Dominator">Dominator (ドミネーター)</a></li><li><a href="/ja/docs/Glossary/DOS_attack">DoS attack (DoS 攻撃)</a></li><li><a href="/ja/docs/Glossary/DSL">DSL</a></li><li><a href="/ja/docs/Glossary/DTLS">DTLS (Datagram Transport Layer Security)</a></li><li><a href="/ja/docs/Glossary/DTMF">DTMF (Dual-Tone Multi-Frequency signaling)</a></li><li><a href="/ja/docs/Glossary/Dynamic_typing">Dynamic typing (動的型付け)</a></li><li><a href="/ja/docs/Glossary/ECMA">ECMA</a></li><li><a href="/ja/docs/Glossary/ECMAScript">ECMAScript</a></li><li><a href="/ja/docs/Glossary/Effective_connection_type">Effective connection type (有効接続種別)</a></li><li><a href="/ja/docs/Glossary/Element">Element (要素)</a></li><li><a href="/ja/docs/Glossary/Encapsulation">Encapsulation (カプセル化)</a></li><li><a href="/ja/docs/Glossary/Encryption">Encryption (暗号化)</a></li><li><a href="/ja/docs/Glossary/Endianness">Endianness (エンディアン)</a></li><li><a href="/ja/docs/Glossary/Engine">Engine</a></li><li><a href="/ja/docs/Glossary/Entity">Entity (エンティティ)</a></li><li><a href="/ja/docs/Glossary/Entity_header">Entity header (エンティティヘッダー)</a></li><li><a href="/ja/docs/Glossary/Enumerated">Enumerated (列挙型)</a></li><li><a href="/ja/docs/Glossary/eTLD">eTLD</a></li><li><a href="/ja/docs/Glossary/Event">Event (イベント)</a></li><li><a href="/ja/docs/Glossary/Exception">Exception (例外)</a></li><li><a href="/ja/docs/Glossary/EXIF">EXIF</a></li><li><a href="/ja/docs/Glossary/Expando">Expando</a></li><li><a href="/ja/docs/Glossary/Fallback_Alignment">Fallback alignment (代替配置)</a></li><li><a href="/ja/docs/Glossary/Falsy">Falsy (偽値)</a></li><li><a href="/ja/docs/Glossary/Favicon">Favicon (ファビコン)</a></li><li><a href="/ja/docs/Glossary/Federated_identity">Federated identity</a></li><li><a href="/ja/docs/Glossary/Fetch_directive">Fetch directive (フェッチディレクティブ)</a></li><li><a href="/ja/docs/Glossary/Fetch_metadata_request_header">Fetch metadata request header (フェッチメタデータリクエストヘッダー)</a></li><li><a href="/ja/docs/Glossary/Fingerprinting">Fingerprinting (フィンガープリンティング)</a></li><li><a href="/ja/docs/Glossary/Firefox_OS">Firefox OS</a></li><li><a href="/ja/docs/Glossary/Firewall">firewall (ファイアウォール)</a></li><li><a href="/ja/docs/Glossary/First_contentful_paint">First contentful paint</a></li><li><a href="/ja/docs/Glossary/First_CPU_idle">First CPU idle (最初の CPU アイドル)</a></li><li><a href="/ja/docs/Glossary/First_input_delay">First Input Delay (FID)</a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">非推奨</span> </abbr></li><li><a href="/ja/docs/Glossary/First_meaningful_paint">First Meaningful Paint</a></li><li><a href="/ja/docs/Glossary/First_paint">First paint</a></li><li><a href="/ja/docs/Glossary/First-class_Function">First-class Function (第一級関数)</a></li><li><a href="/ja/docs/Glossary/Flex">Flex</a></li><li><a href="/ja/docs/Glossary/Flex_Container">Flex Container (フレックスコンテナー)</a></li><li><a href="/ja/docs/Glossary/Flex_Item">Flex Item (フレックスアイテム)</a></li><li><a href="/ja/docs/Glossary/Flexbox">Flexbox (フレックスボックス)</a></li><li><a href="/ja/docs/Glossary/Flow_relative_values">Flow relative values</a></li><li><a href="/ja/docs/Glossary/Forbidden_header_name">Forbidden header name (禁止ヘッダー名)</a></li><li><a href="/ja/docs/Glossary/Forbidden_response_header_name">Forbidden response header name (禁止レスンポンスヘッダー名)</a></li><li><a href="/ja/docs/Glossary/Fork">Fork (フォーク)</a></li><li><a href="/ja/docs/Glossary/Fragmentainer">Fragmentainer</a></li><li><a href="/ja/docs/Glossary/FPS">frame rate (フレームレート, FPS)</a></li><li><a href="/ja/docs/Glossary/FTP">FTP</a></li><li><a href="/ja/docs/Glossary/FTU">FTU</a></li><li><a href="/ja/docs/Glossary/Function">Function (関数)</a></li><li><a href="/ja/docs/Glossary/Fuzzing">Fuzz testing (ファズテスティング)</a></li><li><a href="/ja/docs/Glossary/Gamut">Gamut (色域)</a></li><li><a href="/ja/docs/Glossary/Garbage_collection">Garbage collection (ガベージコレクション)</a></li><li><a href="/ja/docs/Glossary/Gecko">Gecko</a></li><li><a href="/ja/docs/Glossary/General_header">General header (一般ヘッダー)</a></li><li><a href="/ja/docs/Glossary/GIF">GIF</a></li><li><a href="/ja/docs/Glossary/Git">Git</a></li><li><a href="/ja/docs/Glossary/Global_object">Global object (グローバルオブジェクト)</a></li><li><a href="/ja/docs/Glossary/Global_scope">Global scope (グローバルスコープ)</a></li><li><a href="/ja/docs/Glossary/Global_variable">Global variable (グローバル変数)</a></li><li><a href="/ja/docs/Glossary/Glyph">Glyph (字体)</a></li><li><a href="/ja/docs/Glossary/Google_Chrome">Google Chrome</a></li><li><a href="/ja/docs/Glossary/GPL">GPL</a></li><li><a href="/ja/docs/Glossary/GPU">GPU</a></li><li><a href="/ja/docs/Glossary/Graceful_degradation">Graceful degradation (グレースフルデグラデーション)</a></li><li><a href="/ja/docs/Glossary/Grid">Grid (グリッド)</a></li><li><a href="/ja/docs/Glossary/Grid_Areas">Grid Areas (グリッド領域)</a></li><li><a href="/ja/docs/Glossary/Grid_Axis">Grid Axis (グリッド軸)</a></li><li><a href="/ja/docs/Glossary/Grid_Cell">Grid Cell (グリッドセル)</a></li><li><a href="/ja/docs/Glossary/Grid_Column">Grid Column (グリッド列)</a></li><li><a href="/ja/docs/Glossary/Grid_Container">Grid container</a></li><li><a href="/ja/docs/Glossary/Grid_Lines">Grid Line (グリッド線)</a></li><li><a href="/ja/docs/Glossary/Grid_Row">Grid Row (グリッド行)</a></li><li><a href="/ja/docs/Glossary/Grid_Tracks">Grid Track (グリッドトラック)</a></li><li><a href="/ja/docs/Glossary/Gutters">Gutter (溝)</a></li><li><a href="/ja/docs/Glossary/gzip_compression">gzip compression (gzip 圧縮)</a></li><li><a href="/ja/docs/Glossary/Hash">Hash (ハッシュ)</a></li><li><a href="/ja/docs/Glossary/Head">Head</a></li><li><a href="/ja/docs/Glossary/High-level_programming_language">High-level programming language (高水準言語)</a></li><li><a href="/ja/docs/Glossary/HMAC">HMAC</a></li><li><a href="/ja/docs/Glossary/Hoisting">Hoisting (巻き上げ、ホイスティング)</a></li><li><a href="/ja/docs/Glossary/Host">Host (ホスト)</a></li><li><a href="/ja/docs/Glossary/Hotlink">Hotlink (直リンク)</a></li><li><a href="/ja/docs/Glossary/Houdini">Houdini</a></li><li><a href="/ja/docs/Glossary/HPKP">HPKP</a></li><li><a href="/ja/docs/Glossary/HSTS">HSTS</a></li><li><a href="/ja/docs/Glossary/HTML">HTML</a></li><li><a href="/ja/docs/Glossary/html_color_codes">HTML color codes</a></li><li><a href="/ja/docs/Glossary/HTML5">HTML5</a></li><li><a href="/ja/docs/Glossary/HTTP">HTTP</a></li><li><a href="/ja/docs/Glossary/HTTP_Content">HTTP Content (HTTP コンテンツ)</a></li><li><a href="/ja/docs/Glossary/HTTP_header">HTTP header (HTTP ヘッダー)</a></li><li><a href="/ja/docs/Glossary/HTTP_2">HTTP/2</a></li><li><a href="/ja/docs/Glossary/HTTP_3">HTTP/3</a></li><li><a href="/ja/docs/Glossary/HTTPS">HTTPS</a></li><li><a href="/ja/docs/Glossary/HTTPS_RR">HTTPS RR</a></li><li><a href="/ja/docs/Glossary/Hyperlink">Hyperlink (ハイパーリンク)</a></li><li><a href="/ja/docs/Glossary/Hypertext">Hypertext (ハイパーテキスト)</a></li><li><a href="/ja/docs/Glossary/IANA">IANA</a></li><li><a href="/ja/docs/Glossary/ICANN">ICANN</a></li><li><a href="/ja/docs/Glossary/ICE">ICE</a></li><li><a href="/ja/docs/Glossary/IDE">IDE (統合開発環境)</a></li><li><a href="/ja/docs/Glossary/Idempotent">Idempotent (べき等)</a></li><li><a href="/ja/docs/Glossary/Identifier">Identifier (識別子)</a></li><li><a href="/ja/docs/Glossary/Identity_provider">Identity provider (IdP)</a></li><li><a href="/ja/docs/Glossary/IDL">IDL (インターフェイス記述言語)</a></li><li><a href="/ja/docs/Glossary/IETF">IETF</a></li><li><a href="/ja/docs/Glossary/IIFE">IIFE (即時実行関数式)</a></li><li><a href="/ja/docs/Glossary/IMAP">IMAP</a></li><li><a href="/ja/docs/Glossary/Immutable">Immutable (不変)</a></li><li><a href="/ja/docs/Glossary/IndexedDB">IndexedDB</a></li><li><a href="/ja/docs/Glossary/Information_architecture">Information architecture (情報アーキテクチャ)</a></li><li><a href="/ja/docs/Glossary/Inheritance">Inheritance (継承)</a></li><li><a href="/ja/docs/Glossary/Ink_overflow">Ink overflow (インクオーバーフロー)</a></li><li><a href="/ja/docs/Glossary/Inline-level_content">Inline-level content (インラインレベルコンテンツ)</a></li><li><a href="/ja/docs/Glossary/Input_method_editor">Input method editor (インプットメソッドエディター)</a></li><li><a href="/ja/docs/Glossary/Inset_properties">Inset properties (インセットプロパティ)</a></li><li><a href="/ja/docs/Glossary/Instance">Instance (インスタンス)</a></li><li><a href="/ja/docs/Glossary/Interaction_to_next_paint">Interaction to Next Paint (INP)</a></li><li><a href="/ja/docs/Glossary/Internationalization">Internationalization (i18n) （国際化対応）</a></li><li><a href="/ja/docs/Glossary/Internet">Internet (インターネット)</a></li><li><a href="/ja/docs/Glossary/Interpolation">Interpolation (補間)</a></li><li><a href="/ja/docs/Glossary/Intrinsic_Size">Intrinsic size (内在サイズ)</a></li><li><a href="/ja/docs/Glossary/IP_Address">IP Address (IPアドレス)</a></li><li><a href="/ja/docs/Glossary/IPv4">IPv4</a></li><li><a href="/ja/docs/Glossary/IPv6">IPv6</a></li><li><a href="/ja/docs/Glossary/IRC">IRC</a></li><li><a href="/ja/docs/Glossary/ISO">ISO (国際標準化機構)</a></li><li><a href="/ja/docs/Glossary/ISP">ISP</a></li><li><a href="/ja/docs/Glossary/ITU">ITU (国際電気通信連合)</a></li><li><a href="/ja/docs/Glossary/Jank">Jank (ジャンク)</a></li><li><a href="/ja/docs/Glossary/Java">Java</a></li><li><a href="/ja/docs/Glossary/JavaScript">JavaScript</a></li><li><a href="/ja/docs/Glossary/Jitter">Jitter</a></li><li><a href="/ja/docs/Glossary/JPEG">JPEG</a></li><li><a href="/ja/docs/Glossary/JSON">JSON</a></li><li><a href="/ja/docs/Glossary/JSON_type_representation">JSON type representation</a></li><li><a href="/ja/docs/Glossary/Kebab_case">Kebab case (ケバブケース)</a></li><li><a href="/ja/docs/Glossary/Key">Key (暗号鍵)</a></li><li><a href="/ja/docs/Glossary/Keyword">Keyword (キーワード)</a></li><li><a href="/ja/docs/Glossary/Largest_contentful_paint">Largest contentful paint</a></li><li><a href="/ja/docs/Glossary/Latency">Latency(レイテンシー)</a></li><li><a href="/ja/docs/Glossary/Layout_viewport">Layout viewport</a></li><li><a href="/ja/docs/Glossary/Lazy_load">Lazy load (遅延読み込み)</a></li><li><a href="/ja/docs/Glossary/LGPL">LGPL</a></li><li><a href="/ja/docs/Glossary/Ligature">Ligature (合字)</a></li><li><a href="/ja/docs/Glossary/Literal">Literal (リテラル)</a></li><li><a href="/ja/docs/Glossary/Local_scope">Local scope (ローカルスコープ)</a></li><li><a href="/ja/docs/Glossary/Local_variable">Local variable (ローカル変数)</a></li><li><a href="/ja/docs/Glossary/Locale">Locale (ロケール)</a></li><li><a href="/ja/docs/Glossary/Localization">Localization (ローカライゼーション)</a></li><li><a href="/ja/docs/Glossary/Logical_properties">Logical properties</a></li><li><a href="/ja/docs/Glossary/Long_task">Long task (ロングタスク)</a></li><li><a href="/ja/docs/Glossary/Loop">Loop (ループ)</a></li><li><a href="/ja/docs/Glossary/Lossless_compression">Lossless compression (可逆圧縮)</a></li><li><a href="/ja/docs/Glossary/Lossy_compression">Lossy compression (非可逆圧縮)</a></li><li><a href="/ja/docs/Glossary/LTR">LTR (左書き)</a></li><li><a href="/ja/docs/Glossary/Main_Axis">Main Axis (主軸)</a></li><li><a href="/ja/docs/Glossary/Main_thread">Main thread (メインスレッド)</a></li><li><a href="/ja/docs/Glossary/Markup">markup (マークアップ)</a></li><li><a href="/ja/docs/Glossary/MathML">MathML</a></li><li><a href="/ja/docs/Glossary/Media">Media (メディア)</a></li><li><a href="/ja/docs/Glossary/Media_query">Media query (メディアクエリー)</a></li><li><a href="/ja/docs/Glossary/Metadata">Metadata (メタデータ)</a></li><li><a href="/ja/docs/Glossary/Method">Method (メソッド)</a></li><li><a href="/ja/docs/Glossary/Microsoft_Edge">Microsoft Edge</a></li><li><a href="/ja/docs/Glossary/Microsoft_Internet_Explorer">Microsoft Internet Explorer</a></li><li><a href="/ja/docs/Glossary/Middleware">Middleware (ミドルウェア)</a></li><li><a href="/ja/docs/Glossary/MIME">mime</a></li><li><a href="/ja/docs/Glossary/MIME_type">MIME type (MIMEタイプ)</a></li><li><a href="/ja/docs/Glossary/Minification">minification</a></li><li><a href="/ja/docs/Glossary/MitM">MitM (中間者攻撃)</a></li><li><a href="/ja/docs/Glossary/Mixin">Mixin (ミックスイン)</a></li><li><a href="/ja/docs/Glossary/Mobile_First">Mobile First (モバイルファースト)</a></li><li><a href="/ja/docs/Glossary/Modem">Modem (モデム)</a></li><li><a href="/ja/docs/Glossary/Modularity">Modularity (モジュール性)</a></li><li><a href="/ja/docs/Glossary/Mozilla_Firefox">Mozilla Firefox</a></li><li><a href="/ja/docs/Glossary/Mutable">Mutable (ミュータブル)</a></li><li><a href="/ja/docs/Glossary/MVC">MVC</a></li><li><a href="/ja/docs/Glossary/Namespace">Namespace (名前空間)</a></li><li><a href="/ja/docs/Glossary/NaN">NaN (非数)</a></li><li><a href="/ja/docs/Glossary/NAT">NAT</a></li><li><a href="/ja/docs/Glossary/Native">Native (ネイティブ)</a></li><li><a href="/ja/docs/Glossary/Navigation_directive">Navigation directive (ナビゲーションディレクティブ)</a></li><li><a href="/ja/docs/Glossary/Netscape_Navigator">Netscape Navigator</a></li><li><a href="/ja/docs/Glossary/Network_throttling">Network throttling (ネットワークスロットリング)</a></li><li><a href="/ja/docs/Glossary/NNTP">NNTP</a></li><li><a href="/ja/docs/Glossary/Node">Node</a></li><li><a href="/ja/docs/Glossary/Node.js">Node.js</a></li><li><a href="/ja/docs/Glossary/Non-normative">non-normative</a></li><li><a href="/ja/docs/Glossary/Normative">Normative</a></li><li><a href="/ja/docs/Glossary/Null">Null</a></li><li><a href="/ja/docs/Glossary/Nullish">Nullish value</a></li><li><a href="/ja/docs/Glossary/Number">Number</a></li><li><a href="/ja/docs/Glossary/Object">Object (オブジェクト)</a></li><li><a href="/ja/docs/Glossary/Object_reference">Object reference (オブジェクト参照)</a></li><li><a href="/ja/docs/Glossary/OOP">OOP (オブジェクト指向プログラミング)</a></li><li><a href="/ja/docs/Glossary/OpenGL">OpenGL</a></li><li><a href="/ja/docs/Glossary/OpenSSL">OpenSSL</a></li><li><a href="/ja/docs/Glossary/Opera_Browser">Opera Browser</a></li><li><a href="/ja/docs/Glossary/Operand">Operand (オペランド)</a></li><li><a href="/ja/docs/Glossary/Operator">Operator (演算子)</a></li><li><a href="/ja/docs/Glossary/Origin">Origin (オリジン)</a></li><li><a href="/ja/docs/Glossary/OTA">OTA</a></li><li><a href="/ja/docs/Glossary/OWASP">OWASP</a></li><li><a href="/ja/docs/Glossary/P2P">P2P (ピアーツーピアー)</a></li><li><a href="/ja/docs/Glossary/PAC">PAC</a></li><li><a href="/ja/docs/Glossary/Packet">Packet (パケット)</a></li><li><a href="/ja/docs/Glossary/Page_load_time">Page load time (ページ読み込み時間)</a></li><li><a href="/ja/docs/Glossary/Page_prediction">Page prediction</a></li><li><a href="/ja/docs/Glossary/Parameter">Parameter (仮引数)</a></li><li><a href="/ja/docs/Glossary/Parent_object">Parent object (親オブジェクト)</a></li><li><a href="/ja/docs/Glossary/Parse">Parse (構文解析)</a></li><li><a href="/ja/docs/Glossary/Parser">Parser (パーサー)</a></li><li><a href="/ja/docs/Glossary/Payload_body">Payload body</a></li><li><a href="/ja/docs/Glossary/Payload_header">Payload header (ペイロードヘッダー)</a></li><li><a href="/ja/docs/Glossary/PDF">PDF</a></li><li><a href="/ja/docs/Glossary/Perceived_performance">Perceived performance (知覚的パフォーマンス)</a></li><li><a href="/ja/docs/Glossary/Percent-encoding">Percent-encoding (パーセントエンコーディング)</a></li><li><a href="/ja/docs/Glossary/PHP">PHP</a></li><li><a href="/ja/docs/Glossary/Physical_properties">Physical properties (物理プロパティ)</a></li><li><a href="/ja/docs/Glossary/Pixel">Pixel (ピクセル)</a></li><li><a href="/ja/docs/Glossary/Placeholder_names">Placeholder names</a></li><li><a href="/ja/docs/Glossary/Plaintext">Plaintext (平文)</a></li><li><a href="/ja/docs/Glossary/Plugin">Plugin (プラグイン)</a></li><li><a href="/ja/docs/Glossary/PNG">PNG</a></li><li><a href="/ja/docs/Glossary/Polyfill">Polyfill (ポリフィル)</a></li><li><a href="/ja/docs/Glossary/Polymorphism">Polymorphism (多態性)</a></li><li><a href="/ja/docs/Glossary/POP">POP3</a></li><li><a href="/ja/docs/Glossary/Port">Port (ポート)</a></li><li><a href="/ja/docs/Glossary/Prefetch">Prefetch (先読み)</a></li><li><a href="/ja/docs/Glossary/Preflight_request">Preflight request (プリフライトリクエスト)</a></li><li><a href="/ja/docs/Glossary/Prerender">Prerender</a></li><li><a href="/ja/docs/Glossary/Presto">Presto</a></li><li><a href="/ja/docs/Glossary/Primitive">Primitive (プリミティブ)</a></li><li><a href="/ja/docs/Glossary/Privileged">Privileged</a></li><li><a href="/ja/docs/Glossary/Privileged_code">Privileged code (特権コード)</a></li><li><a href="/ja/docs/Glossary/Progressive_Enhancement">Progressive Enhancement (プログレッシブエンハンスメント)</a></li><li><a href="/ja/docs/Glossary/Progressive_web_apps">Progressive web apps (プログレッシブウェブアプリ)</a></li><li><a href="/ja/docs/Glossary/Promise">Promise (プロミス)</a></li><li><a href="/ja/docs/Glossary/Property">Property (プロパティ)</a></li><li><a href="/ja/docs/Glossary/Protocol">Protocol (プロトコル)</a></li><li><a href="/ja/docs/Glossary/Prototype">Prototype</a></li><li><a href="/ja/docs/Glossary/Prototype-based_programming">Prototype-based programming (プロトタイプベースプログラミング)</a></li><li><a href="/ja/docs/Glossary/Proxy_server">Proxy server (プロキシーサーバー)</a></li><li><a href="/ja/docs/Glossary/Pseudo-class">Pseudo-class</a></li><li><a href="/ja/docs/Glossary/Pseudo-element">Pseudo-element (擬似要素)</a></li><li><a href="/ja/docs/Glossary/Pseudocode">Pseudocode (擬似コード)</a></li><li><a href="/ja/docs/Glossary/Public-key_cryptography">Public-key cryptography (公開鍵暗号)</a></li><li><a href="/ja/docs/Glossary/Python">Python</a></li><li><a href="/ja/docs/Glossary/Quality_values">Quality values (品質値)</a></li><li><a href="/ja/docs/Glossary/Quaternion">Quaternion (四元数)</a></li><li><a href="/ja/docs/Glossary/QUIC">QUIC</a></li><li><a href="/ja/docs/Glossary/RAIL">RAIL</a></li><li><a href="/ja/docs/Glossary/RNG">Random Number Generator (乱数発生器)</a></li><li><a href="/ja/docs/Glossary/Raster_image">ラスターイメージ (Raster Image)</a></li><li><a href="/ja/docs/Glossary/Rate_limit">Rate limit (レート制限)</a></li><li><a href="/ja/docs/Glossary/RDF">RDF</a></li><li><a href="/ja/docs/Glossary/Real_User_Monitoring">Real User Monitoring（RUM）</a></li><li><a href="/ja/docs/Glossary/Recursion">Recursion (再帰)</a></li><li><a href="/ja/docs/Glossary/Reflow">Reflow (再フロー)</a></li><li><a href="/ja/docs/Glossary/Regular_expression">Regular expression (正規表現)</a></li><li><a href="/ja/docs/Glossary/Relying_party">Relying party</a></li><li><a href="/ja/docs/Glossary/Render_blocking">Render-blocking (レンダーブロッキング)</a></li><li><a href="/ja/docs/Glossary/Repaint">Repaint (再描画)</a></li><li><a href="/ja/docs/Glossary/Replay_attack">Replay attack</a></li><li><a href="/ja/docs/Glossary/Repo">Repo (リポジトリー)</a></li><li><a href="/ja/docs/Glossary/Reporting_directive">Reporting directive (報告ディレクティブ)</a></li><li><a href="/ja/docs/Glossary/Representation_header">Representation header (表現ヘッダー)</a></li><li><a href="/ja/docs/Glossary/Request_header">Request header (リクエストヘッダー)</a></li><li><a href="/ja/docs/Glossary/Resource_Timing">Resource Timing</a></li><li><a href="/ja/docs/Glossary/Response_header">Response header (レスポンスヘッダー)</a></li><li><a href="/ja/docs/Glossary/Responsive_web_design">Responsive web design (レスポンシブウェブデザイン)</a></li><li><a href="/ja/docs/Glossary/REST">REST</a></li><li><a href="/ja/docs/Glossary/RGB">RGB</a></li><li><a href="/ja/docs/Glossary/RIL">RIL</a></li><li><a href="/ja/docs/Glossary/Robots.txt">Robots.txt</a></li><li><a href="/ja/docs/Glossary/Round_Trip_Time">Round Trip Time (ラウンドトリップタイム)</a></li><li><a href="/ja/docs/Glossary/Router">Router (ルーター)</a></li><li><a href="/ja/docs/Glossary/RSS">RSS</a></li><li><a href="/ja/docs/Glossary/Rsync">Rsync</a></li><li><a href="/ja/docs/Glossary/RTCP">RTCP (RTP Control Protocol)</a></li><li><a href="/ja/docs/Glossary/RTF">RTF</a></li><li><a href="/ja/docs/Glossary/RTL">RTL (右書き)</a></li><li><a href="/ja/docs/Glossary/RTP">RTP (Real-time Transport Protocol) and SRTP (Secure RTP)</a></li><li><a href="/ja/docs/Glossary/RTSP">RTSP: Real-time streaming protocol</a></li><li><a href="/ja/docs/Glossary/Ruby">Ruby</a></li><li><a href="/ja/docs/Glossary/Safe">Safe (安全)</a></li><li><a href="/ja/docs/Glossary/Salt">Salt</a></li><li><a href="/ja/docs/Glossary/Same-origin_policy">Same-origin policy (同一オリジンポリシー)</a></li><li><a href="/ja/docs/Glossary/SCM">SCM</a></li><li><a href="/ja/docs/Glossary/Scope">Scope (スコープ)</a></li><li><a href="/ja/docs/Glossary/Screen_reader">Screen reader (スクリーンリーダー)</a></li><li><a href="/ja/docs/Glossary/Script-supporting_element">Script-supporting element (スクリプト対応要素)</a></li><li><a href="/ja/docs/Glossary/Scroll_boundary">Scroll boundary （スクロール境界）</a></li><li><a href="/ja/docs/Glossary/Scroll_chaining">Scroll chaining （スクロール連鎖）</a></li><li><a href="/ja/docs/Glossary/Scroll_container">Scroll container (スクロールコンテナー)</a></li><li><a href="/ja/docs/Glossary/Scroll_snap">Scroll snap</a></li><li><a href="/ja/docs/Glossary/SCTP">SCTP</a></li><li><a href="/ja/docs/Glossary/SDK">SDK (Software Development Kit)</a></li><li><a href="/ja/docs/Glossary/SDP">SDP</a></li><li><a href="/ja/docs/Glossary/Search_engine">Search engine (検索エンジン)</a></li><li><a href="/ja/docs/Glossary/Secure_Context">Secure Context (安全なコンテキスト)</a></li><li><a href="/ja/docs/Glossary/SSL">SSL</a></li><li><a href="/ja/docs/Glossary/CSS_Selector">Selector (セレクター) (CSS)</a></li><li><a href="/ja/docs/Glossary/Self-Executing_Anonymous_Function">Self-Executing Anonymous Function (自己実行無名関数)</a></li><li><a href="/ja/docs/Glossary/Semantics">Semantics (セマンティクス)</a></li><li><a href="/ja/docs/Glossary/SEO">SEO</a></li><li><a href="/ja/docs/Glossary/Serializable_object">Serializable object （シリアライズ可能オブジェクト）</a></li><li><a href="/ja/docs/Glossary/Serialization">Serialization (シリアライズ)</a></li><li><a href="/ja/docs/Glossary/Server">Server (サーバー)</a></li><li><a href="/ja/docs/Glossary/Server_Timing">Server Timing</a></li><li><a href="/ja/docs/Glossary/Session_Hijacking">Session Hijacking</a></li><li><a href="/ja/docs/Glossary/SGML">SGML</a></li><li><a href="/ja/docs/Glossary/Shadow_tree">Shadow tree (シャドウツリー)</a></li><li><a href="/ja/docs/Glossary/Shallow_copy">Shallow copy (シャローコピー)</a></li><li><a href="/ja/docs/Glossary/Shim">Shim (シム)</a></li><li><a href="/ja/docs/Glossary/Signature">Signature (シグネチャ)</a></li><li><a href="/ja/docs/Glossary/SIMD">SIMD</a></li><li><a href="/ja/docs/Glossary/SISD">SISD</a></li><li><a href="/ja/docs/Glossary/Site">Site (サイト)</a></li><li><a href="/ja/docs/Glossary/Site_map">Site map (サイトマップ)</a></li><li><a href="/ja/docs/Glossary/SLD">SLD</a></li><li><a href="/ja/docs/Glossary/Sloppy_mode">Sloppy モード</a></li><li><a href="/ja/docs/Glossary/Slug">Slug (スラグ)</a></li><li><a href="/ja/docs/Glossary/Smoke_Test">Smoke Test (スモークテスト)</a></li><li><a href="/ja/docs/Glossary/SMPTE">SMPTE (Society of Motion Picture and Television Engineers)</a></li><li><a href="/ja/docs/Glossary/SMTP">SMTP</a></li><li><a href="/ja/docs/Glossary/Snake_case">Snake case (スネークケース)</a></li><li><a href="/ja/docs/Glossary/Snap_positions">Snap positions</a></li><li><a href="/ja/docs/Glossary/SOAP">SOAP</a></li><li><a href="/ja/docs/Glossary/SPA">SPA (単一ページアプリケーション)</a></li><li><a href="/ja/docs/Glossary/Specification">Specification</a></li><li><a href="/ja/docs/Glossary/Speculative_parsing">Speculative parsing (投機的解析)</a></li><li><a href="/ja/docs/Glossary/Speed_index">Speed index (スピードインデックス)</a></li><li><a href="/ja/docs/Glossary/SQL">SQL</a></li><li><a href="/ja/docs/Glossary/SQL_Injection">SQL Injection (SQL インジェクション)</a></li><li><a href="/ja/docs/Glossary/SRI">SRI</a></li><li><a href="/ja/docs/Glossary/Stacking_context">Stacking context (重ね合わせコンテキスト)</a></li><li><a href="/ja/docs/Glossary/State_machine">State machine</a></li><li><a href="/ja/docs/Glossary/Statement">Statement (文)</a></li><li><a href="/ja/docs/Glossary/Static_method">Static method (静的メソッド)</a></li><li><a href="/ja/docs/Glossary/SSG">Static site generator (SSG)</a></li><li><a href="/ja/docs/Glossary/Static_typing">Static typing (静的型付け)</a></li><li><a href="/ja/docs/Glossary/Sticky_activation">Sticky activation (粘着的な有効化)</a></li><li><a href="/ja/docs/Glossary/Strict_mode">Strict mode (厳格モード)</a></li><li><a href="/ja/docs/Glossary/String">String (文字列)</a></li><li><a href="/ja/docs/Glossary/Stringifier">Stringifier (文字列化子)</a></li><li><a href="/ja/docs/Glossary/STUN">STUN</a></li><li><a href="/ja/docs/Glossary/Style_origin">Style origin (スタイルオリジン)</a></li><li><a href="/ja/docs/Glossary/Stylesheet">Stylesheet (スタイルシート)</a></li><li><a href="/ja/docs/Glossary/Submit_button">Submit button (送信ボタン)</a></li><li><a href="/ja/docs/Glossary/SVG">SVG</a></li><li><a href="/ja/docs/Glossary/SVN">SVN</a></li><li><a href="/ja/docs/Glossary/Symbol">Symbol</a></li><li><a href="/ja/docs/Glossary/Symmetric-key_cryptography">Symmetric-key cryptography (共通鍵暗号)</a></li><li><a href="/ja/docs/Glossary/Synchronous">Synchronous (同期通信方式)</a></li><li><a href="/ja/docs/Glossary/Syntax">Syntax (構文)</a></li><li><a href="/ja/docs/Glossary/Syntax_error">Syntax error (構文エラー)</a></li><li><a href="/ja/docs/Glossary/Synthetic_monitoring">Synthetic monitoring (合成モニタリング)</a></li><li><a href="/ja/docs/Glossary/Table_Grid_Box">Table Grid Box (表グリッドボックス)</a></li><li><a href="/ja/docs/Glossary/Table_Wrapper_Box">Table Wrapper Box (表ラッパーボックス)</a></li><li><a href="/ja/docs/Glossary/Tag">Tag (タグ)</a></li><li><a href="/ja/docs/Glossary/TCP">TCP</a></li><li><a href="/ja/docs/Glossary/TCP_handshake">TCP handshake (TCP ハンドシェイク)</a></li><li><a href="/ja/docs/Glossary/TCP_slow_start">TCP slow start</a></li><li><a href="/ja/docs/Glossary/Telnet">Telnet</a></li><li><a href="/ja/docs/Glossary/Texel">Texel (テクセル)</a></li><li><a href="/ja/docs/Glossary/Khronos">The Khronos Group (クロノス・グループ)</a></li><li><a href="/ja/docs/Glossary/Thread">Thread (スレッド)</a></li><li><a href="/ja/docs/Glossary/Three_js">Three js</a></li><li><a href="/ja/docs/Glossary/Throttle">Throttle (スロットル)</a></li><li><a href="/ja/docs/Glossary/Time_to_first_byte">Time to first byte （最初のバイトまでの時間）</a></li><li><a href="/ja/docs/Glossary/Time_to_interactive">Time to interactive (対話までの時間)</a></li><li><a href="/ja/docs/Glossary/TLD">TLD (トップレベルドメイン)</a></li><li><a href="/ja/docs/Glossary/TOFU">TOFU</a></li><li><a href="/ja/docs/Glossary/Top_layer">Top layer (最上位レイヤー)</a></li><li><a href="/ja/docs/Glossary/Transient_activation">Transient activation (一時的な有効化)</a></li><li><a href="/ja/docs/Glossary/TLS">Transport Layer Security (TLS)</a></li><li><a href="/ja/docs/Glossary/Tree_shaking">Tree shaking</a></li><li><a href="/ja/docs/Glossary/Trident">Trident</a></li><li><a href="/ja/docs/Glossary/Truthy">Truthy (真値)</a></li><li><a href="/ja/docs/Glossary/TTL">TTL</a></li><li><a href="/ja/docs/Glossary/TURN">TURN</a></li><li><a href="/ja/docs/Glossary/Type">Type (型)</a></li><li><a href="/ja/docs/Glossary/Type_coercion">Type coercion (型強制)</a></li><li><a href="/ja/docs/Glossary/Type_Conversion">Type conversion (型変換)</a></li><li><a href="/ja/docs/Glossary/TypeScript">TypeScript</a></li><li><a href="/ja/docs/Glossary/UAAG">UAAG</a></li><li><a href="/ja/docs/Glossary/UDP">UDP (User Datagram Protocol)</a></li><li><a href="/ja/docs/Glossary/UI">UI</a></li><li><a href="/ja/docs/Glossary/Undefined">undefined</a></li><li><a href="/ja/docs/Glossary/Unicode">Unicode</a></li><li><a href="/ja/docs/Glossary/Unix_time">Unix time (UNIX 時間)</a></li><li><a href="/ja/docs/Glossary/URI">URI</a></li><li><a href="/ja/docs/Glossary/URL">URL</a></li><li><a href="/ja/docs/Glossary/URN">URN</a></li><li><a href="/ja/docs/Glossary/Usenet">Usenet</a></li><li><a href="/ja/docs/Glossary/User_agent">User agent (ユーザーエージェント)</a></li><li><a href="/ja/docs/Glossary/UTF-8">UTF-8</a></li><li><a href="/ja/docs/Glossary/UUID">UUID</a></li><li><a href="/ja/docs/Glossary/UX">UX</a></li><li><a href="/ja/docs/Glossary/Validator">Validator (バリデーター)</a></li><li><a href="/ja/docs/Glossary/Value">Value (値)</a></li><li><a href="/ja/docs/Glossary/Variable">Variable (変数)</a></li><li><a href="/ja/docs/Glossary/Vendor_Prefix">Vendor Prefix (ベンダー接頭辞)</a></li><li><a href="/ja/docs/Glossary/Viewport">Viewport (ビューポート)</a></li><li><a href="/ja/docs/Glossary/Visual_Viewport">Visual Viewport (視覚的ビューポート)</a></li><li><a href="/ja/docs/Glossary/Void_element">Void element （空要素）</a></li><li><a href="/ja/docs/Glossary/VoIP">VoIP</a></li><li><a href="/ja/docs/Glossary/W3C">W3C</a></li><li><a href="/ja/docs/Glossary/WAI">WAI</a></li><li><a href="/ja/docs/Glossary/WCAG">WCAG</a></li><li><a href="/ja/docs/Glossary/Web_performance">Web performance (ウェブの性能)</a></li><li><a href="/ja/docs/Glossary/Web_server">Web server (ウェブサーバー)</a></li><li><a href="/ja/docs/Glossary/Web_standards">Web standards (ウェブ標準)</a></li><li><a href="/ja/docs/Glossary/WebAssembly">WebAssembly</a></li><li><a href="/ja/docs/Glossary/WebDAV">WebDAV</a></li><li><a href="/ja/docs/Glossary/WebExtensions">WebExtensions</a></li><li><a href="/ja/docs/Glossary/WebGL">WebGL</a></li><li><a href="/ja/docs/Glossary/WebIDL">WebIDL</a></li><li><a href="/ja/docs/Glossary/WebKit">WebKit</a></li><li><a href="/ja/docs/Glossary/WebM">WebM</a></li><li><a href="/ja/docs/Glossary/WebP">WebP</a></li><li><a href="/ja/docs/Glossary/WebRTC">WebRTC</a></li><li><a href="/ja/docs/Glossary/WebSockets">WebSockets</a></li><li><a href="/ja/docs/Glossary/WebVTT">WebVTT</a></li><li><a href="/ja/docs/Glossary/WHATWG">WHATWG</a></li><li><a href="/ja/docs/Glossary/Whitespace">Whitespace (ホワイトスペース)</a></li><li><a href="/ja/docs/Glossary/WindowProxy">WindowProxy</a></li><li><a href="/ja/docs/Glossary/World_Wide_Web">World Wide Web</a></li><li><a href="/ja/docs/Glossary/Wrapper">Wrapper (ラッパー)</a></li><li><a href="/ja/docs/Glossary/XForms">XForms</a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">非推奨</span> </abbr></li><li><a href="/ja/docs/Glossary/XHTML">XHTML</a></li><li><a href="/ja/docs/Glossary/XInclude">XInclude</a></li><li><a href="/ja/docs/Glossary/XLink">XLink</a></li><li><a href="/ja/docs/Glossary/XML">XML</a></li><li><a href="/ja/docs/Glossary/XMLHttpRequest">XHR (XMLHttpRequest)</a></li><li><a href="/ja/docs/Glossary/XPath">XPath</a></li><li><a href="/ja/docs/Glossary/XQuery">XQuery</a></li><li><a href="/ja/docs/Glossary/XSLT">XSLT</a></li><li><a href="/ja/docs/Glossary/Zstandard_compression">Zstandard compression</a></li></ol> </li> </ol> </div></div><section class="place side"></section></nav></aside><div class="toc-container"><aside class="toc"><nav><div class="document-toc-container"><section class="document-toc"><header><h2 class="document-toc-heading">この記事では</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#バッジ">バッジ</a></li><li class="document-toc-item "><a class="document-toc-link" href="#ブラウザーセット">ブラウザーセット</a></li><li class="document-toc-item "><a class="document-toc-link" href="#その他の注意事項">その他の注意事項</a></li><li class="document-toc-item "><a class="document-toc-link" href="#貢献するには">貢献するには</a></li><li class="document-toc-item "><a class="document-toc-link" href="#関連情報">関連情報</a></li></ul></section></div></nav></aside><section class="place side"></section></div></div><main id="content" class="main-content "><article class="main-page-content" lang="ja"><header><h1>Baseline (互換性)</h1></header><div class="section-content"><p> <strong>Baseline</strong> （ベースライン）は、ブラウザー間で動作するウェブプラットフォームの機能を確認します。 Baseline は、サイトの訪問者に互換性の問題を引き起こす可能性が低くなった時期を示すことで、その機能を使用するタイミングを決定するのに役立ちます。 </p> <p>API、一連の CSS プロパティ、JavaScript 構文などの Baseline 機能は、Chrome、Edge、Firefox、Safari など、デスクトップやモバイルで広く使われている有名なブラウザーで一貫して動作します。</p> <p>Baseline 機能とは、現在の安定したブラウザーで新たに利用可能になったか、あるいは長期にわたる継続的なサポートにより広く利用可能になった機能のことを言います。</p></div><section aria-labelledby="バッジ"><h2 id="バッジ"><a href="#バッジ">バッジ</a></h2><div class="section-content"><p> <img src="/ja/docs/Glossary/Baseline/Compatibility/high.png" alt="チェックマークが付いた緑色のウィジェット：Baseline: Widely available. 4 つのブラウザーのロゴ、すべてチェックマーク付き。" width="1205" height="136" loading="lazy"> </p> <p><strong>Widely available</strong> の Baseline バッジが表示されている場合、その機能は各 Baseline ブラウザーで一貫してサポートされてきた歴史があると信頼できます。<em>Widely available</em> である機能とは、何年も前から複数のブラウザーでサポートされている機能です。まだ最新のブラウザーリリースに対応していないものであっても、多くのブラウザーやデバイスで動作します。</p> <p> <img src="/ja/docs/Glossary/Baseline/Compatibility/limited.png" alt="チェックマークが付いた青色のウィジェット：Baseline 2022: Newly available. 4 つのブラウザーのロゴ、すべてチェックマーク付き。" width="1205" height="136" loading="lazy"> </p> <p><strong>Newly available</strong> の Baseline バッジが表示されている場合、その機能は少なくとも各 Baseline ブラウザーの最新の安定版で動作しており、多くの場合それ以上の動作が確認されています。<em>Newly available</em> である機能は、最新のブラウザーでは動作しますが、古いブラウザーやデバイスでは動作しない可能性があります。<em>Newly available</em> である機能を使用する前に、サイトの利用者をよく検討してください。</p> <p> <img src="/ja/docs/Glossary/Baseline/Compatibility/low.png" alt="バツマークが付いた灰色のウィジェット：Limited availability. 4 つのブラウザーのロゴ、2 つにチェックマーク、2 つにバツマーク。" width="1205" height="136" loading="lazy"> </p> <p><strong>Limited availability</strong> バッジが表示されている場合、その機能は Baseline ではありません。その機能に依存する前に、あなたのサイトのユーザーを対象とした調査とテストを行うか、Baseline になるのを待ちましょう。</p></div></section><section aria-labelledby="ブラウザーセット"><h2 id="ブラウザーセット"><a href="#ブラウザーセット">ブラウザーセット</a></h2><div class="section-content"><p>Baseline は、以下のブラウザーでの可用性を追跡します。</p> <ul> <li>Apple Safari (iOS)</li> <li>Apple Safari (macOS)</li> <li>Google Chrome (Android)</li> <li>Google Chrome (desktop)</li> <li>Microsoft Edge (desktop)</li> <li>Mozilla Firefox (Android)</li> <li>Mozilla Firefox (desktop)</li> </ul></div></section><section aria-labelledby="その他の注意事項"><h2 id="その他の注意事項"><a href="#その他の注意事項">その他の注意事項</a></h2><div class="section-content"><p>Baseline はサポートの概要であり、すべての状況をカバーしているわけではありません。もしあなたのサイトが、古いデバイスやブラウザーのリリース、または Baseline でカバーされていないブラウザーで動作する必要がある場合、あなた自身で調査やテストを行う必要があるかもしれません。Baseline があなたの状況をカバーしていない場合は、その機能を採用する前に MDN にあるブラウザーの互換性テーブルを読んだり <a href="https://caniuse.com/" class="external" target="_blank">caniuse.com</a> を参照することを検討してください。</p></div></section><section aria-labelledby="貢献するには"><h2 id="貢献するには"><a href="#貢献するには">貢献するには</a></h2><div class="section-content"><p>Baseline は W3C WebDX Community Group のコミュニティ活動であり、MDN のオープンソースブラウザー互換性データに依存しています。質問やフィードバックがある場合、または Baseline のステータスレポートがカバーする機能の更新や拡張に協力したい場合は、<a href="https://github.com/web-platform-dx/web-features" class="external" target="_blank">web-platform-dx/web-features</a> にアクセスして参加してください。</p></div></section><section aria-labelledby="関連情報"><h2 id="関連情報"><a href="#関連情報">関連情報</a></h2><div class="section-content"><ul> <li><a href="/ja/docs/Learn/Tools_and_testing/Cross_browser_testing">ブラウザー横断テスト</a></li> <li><a href="https://github.com/web-platform-dx/web-features" class="external" target="_blank">web-platform-dx/web-features repository</a></li> <li><a href="https://www.w3.org/community/webdx/" class="external" target="_blank">W3C WebDX Community Group</a></li> <li><a href="https://github.com/mdn/browser-compat-data" class="external" target="_blank">mdn/browser-compat-data repository</a></li> </ul></div></section></article><aside class="article-footer"><div class="article-footer-inner"><div class="svg-container"><svg xmlns="http://www.w3.org/2000/svg" width="162" height="162" viewBox="0 0 162 162" fill="none" role="none"><mask id="b" fill="#fff"><path d="M97.203 47.04c8.113-7.886 18.004-13.871 28.906-17.492a78 78 0 0 1 33.969-3.39c11.443 1.39 22.401 5.295 32.024 11.411s17.656 14.28 23.476 23.86c5.819 9.579 9.269 20.318 10.083 31.385a69.85 69.85 0 0 1-5.387 32.44c-4.358 10.272-11.115 19.443-19.747 26.801-8.632 7.359-18.908 12.709-30.034 15.637l-6.17-21.698c7.666-2.017 14.746-5.703 20.694-10.773 5.948-5.071 10.603-11.389 13.606-18.467a48.14 48.14 0 0 0 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href=\"/ja/docs/Glossary/Accessible_name\">Accessible name (アクセシブル名)</a></li><li><a href=\"/ja/docs/Glossary/Adobe_Flash\">Adobe Flash</a></li><li><a href=\"/ja/docs/Glossary/Advance_measure\">Advance measure (送り幅)</a></li><li><a href=\"/ja/docs/Glossary/AJAX\">AJAX</a></li><li><a href=\"/ja/docs/Glossary/Algorithm\">Algorithm (アルゴリズム)</a></li><li><a href=\"/ja/docs/Glossary/Alignment_Container\">Alignment container (配置コンテナー)</a></li><li><a href=\"/ja/docs/Glossary/Alignment_Subject\">Alignment subject (配置対象物)</a></li><li><a href=\"/ja/docs/Glossary/Alpha\">Alpha (アルファチャンネル)</a></li><li><a href=\"/ja/docs/Glossary/ALPN\">ALPN</a></li><li><a href=\"/ja/docs/Glossary/API\">API</a></li><li><a href=\"/ja/docs/Glossary/Apple_Safari\">Apple Safari</a></li><li><a href=\"/ja/docs/Glossary/Application_context\">Application Context (アプリケーションコンテキスト)</a></li><li><a href=\"/ja/docs/Glossary/Argument\">Argument (実引数)</a></li><li><a href=\"/ja/docs/Glossary/ARIA\">ARIA</a></li><li><a href=\"/ja/docs/Glossary/ARPA\">ARPA</a></li><li><a href=\"/ja/docs/Glossary/Arpanet\">ARPANET</a></li><li><a href=\"/ja/docs/Glossary/Array\">Array (配列)</a></li><li><a href=\"/ja/docs/Glossary/ASCII\">ASCII</a></li><li><a href=\"/ja/docs/Glossary/Aspect_ratio\">Aspect ratio (アスペクト比)</a></li><li><a href=\"/ja/docs/Glossary/Asynchronous\">Asynchronous （非同期）</a></li><li><a href=\"/ja/docs/Glossary/ATAG\">ATAG</a></li><li><a href=\"/ja/docs/Glossary/Attribute\">Attribute (属性)</a></li><li><a href=\"/ja/docs/Glossary/Authentication\">Authentication</a></li><li><a href=\"/ja/docs/Glossary/Authenticator\">Authenticator</a></li><li><a href=\"/ja/docs/Glossary/Bandwidth\">Bandwidth (帯域幅)</a></li><li><a href=\"/ja/docs/Glossary/Base64\">Base64</a></li><li><a href=\"/ja/docs/Glossary/Baseline\">Baseline</a></li><li><a href=\"/ja/docs/Glossary/Beacon\">Beacon (ビーコン)</a></li><li><a href=\"/ja/docs/Glossary/Bezier_curve\">Bézier curve (ベジェ曲線)</a></li><li><a href=\"/ja/docs/Glossary/bfcache\">bfcache</a></li><li><a href=\"/ja/docs/Glossary/BiDi\">BiDi (双方向)</a></li><li><a href=\"/ja/docs/Glossary/BigInt\">BigInt</a></li><li><a href=\"/ja/docs/Glossary/Binding\">Binding （バインド）</a></li><li><a href=\"/ja/docs/Glossary/Bitwise_flags\">Bitwise flags (ビットフラグ)</a></li><li><a href=\"/ja/docs/Glossary/Blink\">Blink</a></li><li><a href=\"/ja/docs/Glossary/blink_element\">blink element (<blink> tag)</a></li><li><a href=\"/ja/docs/Glossary/Block\">Block (ブロック)</a></li><li><a href=\"/ja/docs/Glossary/Block_cipher_mode_of_operation\">Block cipher mode of operation (暗号利用モード)</a></li><li><a href=\"/ja/docs/Glossary/Block-level_content\">Block-level content (ブロックレベルコンテンツ)</a></li><li><a href=\"/ja/docs/Glossary/Boolean\">Boolean</a></li><li><a href=\"/ja/docs/Glossary/Bounding_box\">Bounding Box (バウンディングボックス)</a></li><li><a href=\"/ja/docs/Glossary/Breadcrumb\">Breadcrumb (パンくずリスト)</a></li><li><a href=\"/ja/docs/Glossary/Brotli_compression\">Brotli</a></li><li><a href=\"/ja/docs/Glossary/Browser\">Browser (ブラウザー)</a></li><li><a href=\"/ja/docs/Glossary/Browsing_context\">Browsing context (閲覧コンテキスト)</a></li><li><a href=\"/ja/docs/Glossary/Buffer\">buffer (バッファー)</a></li><li><a href=\"/ja/docs/Glossary/Cache\">Cache(キャッシュ)</a></li><li><a href=\"/ja/docs/Glossary/Cacheable\">Cacheable (キャッシュ可能)</a></li><li><a href=\"/ja/docs/Glossary/CalDAV\">CalDAV</a></li><li><a href=\"/ja/docs/Glossary/Call_stack\">Call stack (コールスタック)</a></li><li><a href=\"/ja/docs/Glossary/Callback_function\">Callback function (コールバック関数)</a></li><li><a href=\"/ja/docs/Glossary/Camel_case\">Camel case (キャメルケース)</a></li><li><a href=\"/ja/docs/Glossary/Canonical_order\">Canonical order (正規順序)</a></li><li><a href=\"/ja/docs/Glossary/Canvas\">Canvas</a></li><li><a href=\"/ja/docs/Glossary/Card_sorting\">Card sorting (カードソート)</a></li><li><a href=\"/ja/docs/Glossary/CardDAV\">CardDAV</a></li><li><a href=\"/ja/docs/Glossary/Caret\">caret (キャレット)</a></li><li><a href=\"/ja/docs/Glossary/CDN\">CDN</a></li><li><a href=\"/ja/docs/Glossary/Certificate_authority\">Certificate authority (認証局)</a></li><li><a href=\"/ja/docs/Glossary/Certified\">Certified</a></li><li><a href=\"/ja/docs/Glossary/Challenge\">Challenge-response authentication (チャレンジレスポンス認証)</a></li><li><a href=\"/ja/docs/Glossary/Character\">Character (文字)</a></li><li><a href=\"/ja/docs/Glossary/Character_encoding\">Character encoding (文字エンコーディング)</a></li><li><a href=\"/ja/docs/Glossary/Character_reference\">Character reference</a></li><li><a href=\"/ja/docs/Glossary/Character_set\">Character set (文字コード)</a></li><li><a href=\"/ja/docs/Glossary/Chrome\">Chrome (クローム)</a></li><li><a href=\"/ja/docs/Glossary/CIA\">CIA（Confidentiality, Integrity, Availability）</a></li><li><a href=\"/ja/docs/Glossary/Cipher\">Cipher (サイファー)</a></li><li><a href=\"/ja/docs/Glossary/Cipher_suite\">Cipher suite (暗号スイート)</a></li><li><a href=\"/ja/docs/Glossary/Ciphertext\">Ciphertext (暗号文)</a></li><li><a href=\"/ja/docs/Glossary/Class\">Class (クラス)</a></li><li><a href=\"/ja/docs/Glossary/Clickjacking\">Clickjacking</a></li><li><a href=\"/ja/docs/Glossary/Closure\">Closure (クロージャ)</a></li><li><a href=\"/ja/docs/Glossary/Cloud\">Cloud</a></li><li><a href=\"/ja/docs/Glossary/Cloud_computing\">Cloud computing</a></li><li><a href=\"/ja/docs/Glossary/CMS\">CMS</a></li><li><a href=\"/ja/docs/Glossary/Code_point\">Code point (コードポイント)</a></li><li><a href=\"/ja/docs/Glossary/Code_splitting\">Code splitting (コード分割)</a></li><li><a href=\"/ja/docs/Glossary/Code_unit\">Code unit (コード単位)</a></li><li><a href=\"/ja/docs/Glossary/Codec\">Codec (コーデック)</a></li><li><a href=\"/ja/docs/Glossary/Color_space\">Color space (色空間)</a></li><li><a href=\"/ja/docs/Glossary/Color_wheel\">Color wheel (色相環)</a></li><li><a href=\"/ja/docs/Glossary/Compile\">Compile (コンパイル)</a></li><li><a href=\"/ja/docs/Glossary/Compile_time\">Compile time (コンパイル時間)</a></li><li><a href=\"/ja/docs/Glossary/Composite_operation\">Composite operation (合成演算)</a></li><li><a href=\"/ja/docs/Glossary/Computer_Programming\">Computer Programming (コンピュータープログラミング)</a></li><li><a href=\"/ja/docs/Glossary/Conditional\">Conditional (条件式)</a></li><li><a href=\"/ja/docs/Glossary/Constant\">Constant (定数)</a></li><li><a href=\"/ja/docs/Glossary/Constructor\">Constructor (コンストラクター)</a></li><li><a href=\"/ja/docs/Glossary/Content_header\">Content header (コンテンツヘッダー)</a></li><li><a href=\"/ja/docs/Glossary/Continuous_Media\">Continuous Media (連続的メディア)</a></li><li><a href=\"/ja/docs/Glossary/Control_flow\">Control flow (制御フロー)</a></li><li><a href=\"/ja/docs/Glossary/Cookie\">Cookie</a></li><li><a href=\"/ja/docs/Glossary/Copyleft\">Copyleft (コピーレフト)</a></li><li><a href=\"/ja/docs/Glossary/CORS\">CORS</a></li><li><a href=\"/ja/docs/Glossary/CORS-safelisted_request_header\">CORS-safelisted request header (CORS セーフリストリクエストヘッダー)</a></li><li><a href=\"/ja/docs/Glossary/CORS-safelisted_response_header\">CORS-safelisted response header (CORS セーフリストレスポンスヘッダー)</a></li><li><a href=\"/ja/docs/Glossary/Crawler\">Crawler (クローラー)</a></li><li><a href=\"/ja/docs/Glossary/Credential\">Credential</a></li><li><a href=\"/ja/docs/Glossary/CRLF\">CRLF</a></li><li><a href=\"/ja/docs/Glossary/Cross_Axis\">Cross Axis (交差軸)</a></li><li><a href=\"/ja/docs/Glossary/Cross-site_scripting\">Cross-site scripting (クロスサイトスクリプティング)</a></li><li><a href=\"/ja/docs/Glossary/CRUD\">CRUD</a></li><li><a href=\"/ja/docs/Glossary/Cryptanalysis\">Cryptanalysis (暗号解読)</a></li><li><a href=\"/ja/docs/Glossary/Cryptographic_hash_function\">Cryptographic hash function (暗号学的ハッシュ関数)</a></li><li><a href=\"/ja/docs/Glossary/Cryptography\">Cryptography (暗号学)</a></li><li><a href=\"/ja/docs/Glossary/CSP\">CSP</a></li><li><a href=\"/ja/docs/Glossary/CSRF\">CSRF</a></li><li><a href=\"/ja/docs/Glossary/CSS\">CSS</a></li><li><a href=\"/ja/docs/Glossary/CSSOM\">CSS Object Model (CSSOM)</a></li><li><a href=\"/ja/docs/Glossary/CSS_pixel\">CSS pixel</a></li><li><a href=\"/ja/docs/Glossary/CSS_preprocessor\">CSS preprocessor (CSS プリプロセッサー)</a></li><li><a href=\"/ja/docs/Glossary/CLS\">Cumulative Layout Shift (CLS)</a></li><li><a href=\"/ja/docs/Glossary/Data_structure\">Data structure (データ構造)</a></li><li><a href=\"/ja/docs/Glossary/Database\">Database</a></li><li><a href=\"/ja/docs/Glossary/Debounce\">Debounce (デバウンス)</a></li><li><a href=\"/ja/docs/Glossary/Decryption\">Decryption (復号)</a></li><li><a href=\"/ja/docs/Glossary/Deep_copy\">Deep copy (ディープコピー)</a></li><li><a href=\"/ja/docs/Glossary/Delta\">Delta (デルタ)</a></li><li><a href=\"/ja/docs/Glossary/Denial_of_Service\">Denial of Service (サービス拒否)</a></li><li><a href=\"/ja/docs/Glossary/Deno\">Deno</a></li><li><a href=\"/ja/docs/Glossary/CSS_Descriptor\">Descriptor (CSS) (記述子)</a></li><li><a href=\"/ja/docs/Glossary/Deserialization\">Deserialization (デシリアライズ)</a></li><li><a href=\"/ja/docs/Glossary/Developer_Tools\">Developer Tools (開発者ツール)</a></li><li><a href=\"/ja/docs/Glossary/Digest\">Digest</a></li><li><a href=\"/ja/docs/Glossary/Digital_certificate\">Digital certificate (デジタル証明書)</a></li><li><a href=\"/ja/docs/Glossary/Digital_signature\">Digital signature</a></li><li><a href=\"/ja/docs/Glossary/Distributed_Denial_of_Service\">Distributed Denial of Service</a></li><li><a href=\"/ja/docs/Glossary/DMZ\">DMZ</a></li><li><a href=\"/ja/docs/Glossary/DNS\">DNS</a></li><li><a href=\"/ja/docs/Glossary/Doctype\">Doctype</a></li><li><a href=\"/ja/docs/Glossary/Document_directive\">Document directive (文書ディレクティブ)</a></li><li><a href=\"/ja/docs/Glossary/Document_environment\">Document environment (文書環境)</a></li><li><a href=\"/ja/docs/Glossary/DOM\">DOM (Document Object Model)</a></li><li><a href=\"/ja/docs/Glossary/Domain\">Domain (ドメイン)</a></li><li><a href=\"/ja/docs/Glossary/Domain_name\">Domain name (ドメイン名)</a></li><li><a href=\"/ja/docs/Glossary/Domain_sharding\">Domain sharding (ドメインシャーディング)</a></li><li><a href=\"/ja/docs/Glossary/Dominator\">Dominator (ドミネーター)</a></li><li><a href=\"/ja/docs/Glossary/DOS_attack\">DoS attack (DoS 攻撃)</a></li><li><a href=\"/ja/docs/Glossary/DSL\">DSL</a></li><li><a href=\"/ja/docs/Glossary/DTLS\">DTLS (Datagram Transport Layer Security)</a></li><li><a href=\"/ja/docs/Glossary/DTMF\">DTMF (Dual-Tone Multi-Frequency signaling)</a></li><li><a href=\"/ja/docs/Glossary/Dynamic_typing\">Dynamic typing (動的型付け)</a></li><li><a href=\"/ja/docs/Glossary/ECMA\">ECMA</a></li><li><a href=\"/ja/docs/Glossary/ECMAScript\">ECMAScript</a></li><li><a href=\"/ja/docs/Glossary/Effective_connection_type\">Effective connection type (有効接続種別)</a></li><li><a href=\"/ja/docs/Glossary/Element\">Element (要素)</a></li><li><a href=\"/ja/docs/Glossary/Encapsulation\">Encapsulation (カプセル化)</a></li><li><a href=\"/ja/docs/Glossary/Encryption\">Encryption (暗号化)</a></li><li><a href=\"/ja/docs/Glossary/Endianness\">Endianness (エンディアン)</a></li><li><a href=\"/ja/docs/Glossary/Engine\">Engine</a></li><li><a href=\"/ja/docs/Glossary/Entity\">Entity (エンティティ)</a></li><li><a href=\"/ja/docs/Glossary/Entity_header\">Entity header (エンティティヘッダー)</a></li><li><a href=\"/ja/docs/Glossary/Enumerated\">Enumerated (列挙型)</a></li><li><a href=\"/ja/docs/Glossary/eTLD\">eTLD</a></li><li><a href=\"/ja/docs/Glossary/Event\">Event (イベント)</a></li><li><a href=\"/ja/docs/Glossary/Exception\">Exception (例外)</a></li><li><a href=\"/ja/docs/Glossary/EXIF\">EXIF</a></li><li><a href=\"/ja/docs/Glossary/Expando\">Expando</a></li><li><a href=\"/ja/docs/Glossary/Fallback_Alignment\">Fallback alignment (代替配置)</a></li><li><a href=\"/ja/docs/Glossary/Falsy\">Falsy (偽値)</a></li><li><a href=\"/ja/docs/Glossary/Favicon\">Favicon (ファビコン)</a></li><li><a href=\"/ja/docs/Glossary/Federated_identity\">Federated identity</a></li><li><a href=\"/ja/docs/Glossary/Fetch_directive\">Fetch directive (フェッチディレクティブ)</a></li><li><a href=\"/ja/docs/Glossary/Fetch_metadata_request_header\">Fetch metadata request header (フェッチメタデータリクエストヘッダー)</a></li><li><a href=\"/ja/docs/Glossary/Fingerprinting\">Fingerprinting (フィンガープリンティング)</a></li><li><a href=\"/ja/docs/Glossary/Firefox_OS\">Firefox OS</a></li><li><a href=\"/ja/docs/Glossary/Firewall\">firewall (ファイアウォール)</a></li><li><a href=\"/ja/docs/Glossary/First_contentful_paint\">First contentful paint</a></li><li><a href=\"/ja/docs/Glossary/First_CPU_idle\">First CPU idle (最初の CPU アイドル)</a></li><li><a href=\"/ja/docs/Glossary/First_input_delay\">First Input Delay (FID)</a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">非推奨</span>\n</abbr></li><li><a href=\"/ja/docs/Glossary/First_meaningful_paint\">First Meaningful Paint</a></li><li><a href=\"/ja/docs/Glossary/First_paint\">First paint</a></li><li><a href=\"/ja/docs/Glossary/First-class_Function\">First-class Function (第一級関数)</a></li><li><a href=\"/ja/docs/Glossary/Flex\">Flex</a></li><li><a href=\"/ja/docs/Glossary/Flex_Container\">Flex Container (フレックスコンテナー)</a></li><li><a href=\"/ja/docs/Glossary/Flex_Item\">Flex Item (フレックスアイテム)</a></li><li><a href=\"/ja/docs/Glossary/Flexbox\">Flexbox (フレックスボックス)</a></li><li><a href=\"/ja/docs/Glossary/Flow_relative_values\">Flow relative values</a></li><li><a href=\"/ja/docs/Glossary/Forbidden_header_name\">Forbidden header name (禁止ヘッダー名)</a></li><li><a href=\"/ja/docs/Glossary/Forbidden_response_header_name\">Forbidden response header name (禁止レスンポンスヘッダー名)</a></li><li><a href=\"/ja/docs/Glossary/Fork\">Fork (フォーク)</a></li><li><a href=\"/ja/docs/Glossary/Fragmentainer\">Fragmentainer</a></li><li><a href=\"/ja/docs/Glossary/FPS\">frame rate (フレームレート, FPS)</a></li><li><a href=\"/ja/docs/Glossary/FTP\">FTP</a></li><li><a href=\"/ja/docs/Glossary/FTU\">FTU</a></li><li><a href=\"/ja/docs/Glossary/Function\">Function (関数)</a></li><li><a href=\"/ja/docs/Glossary/Fuzzing\">Fuzz testing (ファズテスティング)</a></li><li><a href=\"/ja/docs/Glossary/Gamut\">Gamut (色域)</a></li><li><a href=\"/ja/docs/Glossary/Garbage_collection\">Garbage collection (ガベージコレクション)</a></li><li><a href=\"/ja/docs/Glossary/Gecko\">Gecko</a></li><li><a href=\"/ja/docs/Glossary/General_header\">General header (一般ヘッダー)</a></li><li><a href=\"/ja/docs/Glossary/GIF\">GIF</a></li><li><a href=\"/ja/docs/Glossary/Git\">Git</a></li><li><a href=\"/ja/docs/Glossary/Global_object\">Global object (グローバルオブジェクト)</a></li><li><a href=\"/ja/docs/Glossary/Global_scope\">Global scope (グローバルスコープ)</a></li><li><a href=\"/ja/docs/Glossary/Global_variable\">Global variable (グローバル変数)</a></li><li><a href=\"/ja/docs/Glossary/Glyph\">Glyph (字体)</a></li><li><a href=\"/ja/docs/Glossary/Google_Chrome\">Google Chrome</a></li><li><a href=\"/ja/docs/Glossary/GPL\">GPL</a></li><li><a href=\"/ja/docs/Glossary/GPU\">GPU</a></li><li><a href=\"/ja/docs/Glossary/Graceful_degradation\">Graceful degradation (グレースフルデグラデーション)</a></li><li><a href=\"/ja/docs/Glossary/Grid\">Grid (グリッド)</a></li><li><a href=\"/ja/docs/Glossary/Grid_Areas\">Grid Areas (グリッド領域)</a></li><li><a href=\"/ja/docs/Glossary/Grid_Axis\">Grid Axis (グリッド軸)</a></li><li><a href=\"/ja/docs/Glossary/Grid_Cell\">Grid Cell (グリッドセル)</a></li><li><a href=\"/ja/docs/Glossary/Grid_Column\">Grid Column (グリッド列)</a></li><li><a href=\"/ja/docs/Glossary/Grid_Container\">Grid container</a></li><li><a href=\"/ja/docs/Glossary/Grid_Lines\">Grid Line (グリッド線)</a></li><li><a href=\"/ja/docs/Glossary/Grid_Row\">Grid Row (グリッド行)</a></li><li><a href=\"/ja/docs/Glossary/Grid_Tracks\">Grid Track (グリッドトラック)</a></li><li><a href=\"/ja/docs/Glossary/Gutters\">Gutter (溝)</a></li><li><a href=\"/ja/docs/Glossary/gzip_compression\">gzip compression (gzip 圧縮)</a></li><li><a href=\"/ja/docs/Glossary/Hash\">Hash (ハッシュ)</a></li><li><a href=\"/ja/docs/Glossary/Head\">Head</a></li><li><a href=\"/ja/docs/Glossary/High-level_programming_language\">High-level programming language (高水準言語)</a></li><li><a href=\"/ja/docs/Glossary/HMAC\">HMAC</a></li><li><a href=\"/ja/docs/Glossary/Hoisting\">Hoisting (巻き上げ、ホイスティング)</a></li><li><a href=\"/ja/docs/Glossary/Host\">Host (ホスト)</a></li><li><a href=\"/ja/docs/Glossary/Hotlink\">Hotlink (直リンク)</a></li><li><a href=\"/ja/docs/Glossary/Houdini\">Houdini</a></li><li><a href=\"/ja/docs/Glossary/HPKP\">HPKP</a></li><li><a href=\"/ja/docs/Glossary/HSTS\">HSTS</a></li><li><a href=\"/ja/docs/Glossary/HTML\">HTML</a></li><li><a href=\"/ja/docs/Glossary/html_color_codes\">HTML color codes</a></li><li><a href=\"/ja/docs/Glossary/HTML5\">HTML5</a></li><li><a href=\"/ja/docs/Glossary/HTTP\">HTTP</a></li><li><a href=\"/ja/docs/Glossary/HTTP_Content\">HTTP Content (HTTP コンテンツ)</a></li><li><a href=\"/ja/docs/Glossary/HTTP_header\">HTTP header (HTTP ヘッダー)</a></li><li><a href=\"/ja/docs/Glossary/HTTP_2\">HTTP/2</a></li><li><a href=\"/ja/docs/Glossary/HTTP_3\">HTTP/3</a></li><li><a href=\"/ja/docs/Glossary/HTTPS\">HTTPS</a></li><li><a href=\"/ja/docs/Glossary/HTTPS_RR\">HTTPS RR</a></li><li><a href=\"/ja/docs/Glossary/Hyperlink\">Hyperlink (ハイパーリンク)</a></li><li><a href=\"/ja/docs/Glossary/Hypertext\">Hypertext (ハイパーテキスト)</a></li><li><a href=\"/ja/docs/Glossary/IANA\">IANA</a></li><li><a href=\"/ja/docs/Glossary/ICANN\">ICANN</a></li><li><a href=\"/ja/docs/Glossary/ICE\">ICE</a></li><li><a href=\"/ja/docs/Glossary/IDE\">IDE (統合開発環境)</a></li><li><a href=\"/ja/docs/Glossary/Idempotent\">Idempotent (べき等)</a></li><li><a href=\"/ja/docs/Glossary/Identifier\">Identifier (識別子)</a></li><li><a href=\"/ja/docs/Glossary/Identity_provider\">Identity provider (IdP)</a></li><li><a href=\"/ja/docs/Glossary/IDL\">IDL (インターフェイス記述言語)</a></li><li><a href=\"/ja/docs/Glossary/IETF\">IETF</a></li><li><a href=\"/ja/docs/Glossary/IIFE\">IIFE (即時実行関数式)</a></li><li><a href=\"/ja/docs/Glossary/IMAP\">IMAP</a></li><li><a href=\"/ja/docs/Glossary/Immutable\">Immutable (不変)</a></li><li><a href=\"/ja/docs/Glossary/IndexedDB\">IndexedDB</a></li><li><a href=\"/ja/docs/Glossary/Information_architecture\">Information architecture (情報アーキテクチャ)</a></li><li><a href=\"/ja/docs/Glossary/Inheritance\">Inheritance (継承)</a></li><li><a href=\"/ja/docs/Glossary/Ink_overflow\">Ink overflow (インクオーバーフロー)</a></li><li><a href=\"/ja/docs/Glossary/Inline-level_content\">Inline-level content (インラインレベルコンテンツ)</a></li><li><a href=\"/ja/docs/Glossary/Input_method_editor\">Input method editor (インプットメソッドエディター)</a></li><li><a href=\"/ja/docs/Glossary/Inset_properties\">Inset properties (インセットプロパティ)</a></li><li><a href=\"/ja/docs/Glossary/Instance\">Instance (インスタンス)</a></li><li><a href=\"/ja/docs/Glossary/Interaction_to_next_paint\">Interaction to Next Paint (INP)</a></li><li><a href=\"/ja/docs/Glossary/Internationalization\">Internationalization (i18n) （国際化対応）</a></li><li><a href=\"/ja/docs/Glossary/Internet\">Internet (インターネット)</a></li><li><a href=\"/ja/docs/Glossary/Interpolation\">Interpolation (補間)</a></li><li><a href=\"/ja/docs/Glossary/Intrinsic_Size\">Intrinsic size (内在サイズ)</a></li><li><a href=\"/ja/docs/Glossary/IP_Address\">IP Address (IPアドレス)</a></li><li><a href=\"/ja/docs/Glossary/IPv4\">IPv4</a></li><li><a href=\"/ja/docs/Glossary/IPv6\">IPv6</a></li><li><a href=\"/ja/docs/Glossary/IRC\">IRC</a></li><li><a href=\"/ja/docs/Glossary/ISO\">ISO (国際標準化機構)</a></li><li><a href=\"/ja/docs/Glossary/ISP\">ISP</a></li><li><a href=\"/ja/docs/Glossary/ITU\">ITU (国際電気通信連合)</a></li><li><a href=\"/ja/docs/Glossary/Jank\">Jank (ジャンク)</a></li><li><a href=\"/ja/docs/Glossary/Java\">Java</a></li><li><a href=\"/ja/docs/Glossary/JavaScript\">JavaScript</a></li><li><a href=\"/ja/docs/Glossary/Jitter\">Jitter</a></li><li><a href=\"/ja/docs/Glossary/JPEG\">JPEG</a></li><li><a href=\"/ja/docs/Glossary/JSON\">JSON</a></li><li><a href=\"/ja/docs/Glossary/JSON_type_representation\">JSON type representation</a></li><li><a href=\"/ja/docs/Glossary/Kebab_case\">Kebab case (ケバブケース)</a></li><li><a href=\"/ja/docs/Glossary/Key\">Key (暗号鍵)</a></li><li><a href=\"/ja/docs/Glossary/Keyword\">Keyword (キーワード)</a></li><li><a href=\"/ja/docs/Glossary/Largest_contentful_paint\">Largest contentful paint</a></li><li><a href=\"/ja/docs/Glossary/Latency\">Latency(レイテンシー)</a></li><li><a href=\"/ja/docs/Glossary/Layout_viewport\">Layout viewport</a></li><li><a href=\"/ja/docs/Glossary/Lazy_load\">Lazy load (遅延読み込み)</a></li><li><a href=\"/ja/docs/Glossary/LGPL\">LGPL</a></li><li><a href=\"/ja/docs/Glossary/Ligature\">Ligature (合字)</a></li><li><a href=\"/ja/docs/Glossary/Literal\">Literal (リテラル)</a></li><li><a href=\"/ja/docs/Glossary/Local_scope\">Local scope (ローカルスコープ)</a></li><li><a href=\"/ja/docs/Glossary/Local_variable\">Local variable (ローカル変数)</a></li><li><a href=\"/ja/docs/Glossary/Locale\">Locale (ロケール)</a></li><li><a href=\"/ja/docs/Glossary/Localization\">Localization (ローカライゼーション)</a></li><li><a href=\"/ja/docs/Glossary/Logical_properties\">Logical properties</a></li><li><a href=\"/ja/docs/Glossary/Long_task\">Long task (ロングタスク)</a></li><li><a href=\"/ja/docs/Glossary/Loop\">Loop (ループ)</a></li><li><a href=\"/ja/docs/Glossary/Lossless_compression\">Lossless compression (可逆圧縮)</a></li><li><a href=\"/ja/docs/Glossary/Lossy_compression\">Lossy compression (非可逆圧縮)</a></li><li><a href=\"/ja/docs/Glossary/LTR\">LTR (左書き)</a></li><li><a href=\"/ja/docs/Glossary/Main_Axis\">Main Axis (主軸)</a></li><li><a href=\"/ja/docs/Glossary/Main_thread\">Main thread (メインスレッド)</a></li><li><a href=\"/ja/docs/Glossary/Markup\">markup (マークアップ)</a></li><li><a href=\"/ja/docs/Glossary/MathML\">MathML</a></li><li><a href=\"/ja/docs/Glossary/Media\">Media (メディア)</a></li><li><a href=\"/ja/docs/Glossary/Media_query\">Media query (メディアクエリー)</a></li><li><a href=\"/ja/docs/Glossary/Metadata\">Metadata (メタデータ)</a></li><li><a href=\"/ja/docs/Glossary/Method\">Method (メソッド)</a></li><li><a href=\"/ja/docs/Glossary/Microsoft_Edge\">Microsoft Edge</a></li><li><a href=\"/ja/docs/Glossary/Microsoft_Internet_Explorer\">Microsoft Internet Explorer</a></li><li><a href=\"/ja/docs/Glossary/Middleware\">Middleware (ミドルウェア)</a></li><li><a href=\"/ja/docs/Glossary/MIME\">mime</a></li><li><a href=\"/ja/docs/Glossary/MIME_type\">MIME type (MIMEタイプ)</a></li><li><a href=\"/ja/docs/Glossary/Minification\">minification</a></li><li><a href=\"/ja/docs/Glossary/MitM\">MitM (中間者攻撃)</a></li><li><a href=\"/ja/docs/Glossary/Mixin\">Mixin (ミックスイン)</a></li><li><a href=\"/ja/docs/Glossary/Mobile_First\">Mobile First (モバイルファースト)</a></li><li><a href=\"/ja/docs/Glossary/Modem\">Modem (モデム)</a></li><li><a href=\"/ja/docs/Glossary/Modularity\">Modularity (モジュール性)</a></li><li><a href=\"/ja/docs/Glossary/Mozilla_Firefox\">Mozilla Firefox</a></li><li><a href=\"/ja/docs/Glossary/Mutable\">Mutable (ミュータブル)</a></li><li><a href=\"/ja/docs/Glossary/MVC\">MVC</a></li><li><a href=\"/ja/docs/Glossary/Namespace\">Namespace (名前空間)</a></li><li><a href=\"/ja/docs/Glossary/NaN\">NaN (非数)</a></li><li><a href=\"/ja/docs/Glossary/NAT\">NAT</a></li><li><a href=\"/ja/docs/Glossary/Native\">Native (ネイティブ)</a></li><li><a href=\"/ja/docs/Glossary/Navigation_directive\">Navigation directive (ナビゲーションディレクティブ)</a></li><li><a href=\"/ja/docs/Glossary/Netscape_Navigator\">Netscape Navigator</a></li><li><a href=\"/ja/docs/Glossary/Network_throttling\">Network throttling (ネットワークスロットリング)</a></li><li><a href=\"/ja/docs/Glossary/NNTP\">NNTP</a></li><li><a href=\"/ja/docs/Glossary/Node\">Node</a></li><li><a href=\"/ja/docs/Glossary/Node.js\">Node.js</a></li><li><a href=\"/ja/docs/Glossary/Non-normative\">non-normative</a></li><li><a href=\"/ja/docs/Glossary/Normative\">Normative</a></li><li><a href=\"/ja/docs/Glossary/Null\">Null</a></li><li><a href=\"/ja/docs/Glossary/Nullish\">Nullish value</a></li><li><a href=\"/ja/docs/Glossary/Number\">Number</a></li><li><a href=\"/ja/docs/Glossary/Object\">Object (オブジェクト)</a></li><li><a href=\"/ja/docs/Glossary/Object_reference\">Object reference (オブジェクト参照)</a></li><li><a href=\"/ja/docs/Glossary/OOP\">OOP (オブジェクト指向プログラミング)</a></li><li><a href=\"/ja/docs/Glossary/OpenGL\">OpenGL</a></li><li><a href=\"/ja/docs/Glossary/OpenSSL\">OpenSSL</a></li><li><a href=\"/ja/docs/Glossary/Opera_Browser\">Opera Browser</a></li><li><a href=\"/ja/docs/Glossary/Operand\">Operand (オペランド)</a></li><li><a href=\"/ja/docs/Glossary/Operator\">Operator (演算子)</a></li><li><a href=\"/ja/docs/Glossary/Origin\">Origin (オリジン)</a></li><li><a href=\"/ja/docs/Glossary/OTA\">OTA</a></li><li><a href=\"/ja/docs/Glossary/OWASP\">OWASP</a></li><li><a href=\"/ja/docs/Glossary/P2P\">P2P (ピアーツーピアー)</a></li><li><a href=\"/ja/docs/Glossary/PAC\">PAC</a></li><li><a href=\"/ja/docs/Glossary/Packet\">Packet (パケット)</a></li><li><a href=\"/ja/docs/Glossary/Page_load_time\">Page load time (ページ読み込み時間)</a></li><li><a href=\"/ja/docs/Glossary/Page_prediction\">Page prediction</a></li><li><a href=\"/ja/docs/Glossary/Parameter\">Parameter (仮引数)</a></li><li><a href=\"/ja/docs/Glossary/Parent_object\">Parent object (親オブジェクト)</a></li><li><a href=\"/ja/docs/Glossary/Parse\">Parse (構文解析)</a></li><li><a href=\"/ja/docs/Glossary/Parser\">Parser (パーサー)</a></li><li><a href=\"/ja/docs/Glossary/Payload_body\">Payload body</a></li><li><a href=\"/ja/docs/Glossary/Payload_header\">Payload header (ペイロードヘッダー)</a></li><li><a href=\"/ja/docs/Glossary/PDF\">PDF</a></li><li><a href=\"/ja/docs/Glossary/Perceived_performance\">Perceived performance (知覚的パフォーマンス)</a></li><li><a href=\"/ja/docs/Glossary/Percent-encoding\">Percent-encoding (パーセントエンコーディング)</a></li><li><a href=\"/ja/docs/Glossary/PHP\">PHP</a></li><li><a href=\"/ja/docs/Glossary/Physical_properties\">Physical properties (物理プロパティ)</a></li><li><a href=\"/ja/docs/Glossary/Pixel\">Pixel (ピクセル)</a></li><li><a href=\"/ja/docs/Glossary/Placeholder_names\">Placeholder names</a></li><li><a href=\"/ja/docs/Glossary/Plaintext\">Plaintext (平文)</a></li><li><a href=\"/ja/docs/Glossary/Plugin\">Plugin (プラグイン)</a></li><li><a href=\"/ja/docs/Glossary/PNG\">PNG</a></li><li><a href=\"/ja/docs/Glossary/Polyfill\">Polyfill (ポリフィル)</a></li><li><a href=\"/ja/docs/Glossary/Polymorphism\">Polymorphism (多態性)</a></li><li><a href=\"/ja/docs/Glossary/POP\">POP3</a></li><li><a href=\"/ja/docs/Glossary/Port\">Port (ポート)</a></li><li><a href=\"/ja/docs/Glossary/Prefetch\">Prefetch (先読み)</a></li><li><a href=\"/ja/docs/Glossary/Preflight_request\">Preflight request (プリフライトリクエスト)</a></li><li><a href=\"/ja/docs/Glossary/Prerender\">Prerender</a></li><li><a href=\"/ja/docs/Glossary/Presto\">Presto</a></li><li><a href=\"/ja/docs/Glossary/Primitive\">Primitive (プリミティブ)</a></li><li><a href=\"/ja/docs/Glossary/Privileged\">Privileged</a></li><li><a href=\"/ja/docs/Glossary/Privileged_code\">Privileged code (特権コード)</a></li><li><a href=\"/ja/docs/Glossary/Progressive_Enhancement\">Progressive Enhancement (プログレッシブエンハンスメント)</a></li><li><a href=\"/ja/docs/Glossary/Progressive_web_apps\">Progressive web apps (プログレッシブウェブアプリ)</a></li><li><a href=\"/ja/docs/Glossary/Promise\">Promise (プロミス)</a></li><li><a href=\"/ja/docs/Glossary/Property\">Property (プロパティ)</a></li><li><a href=\"/ja/docs/Glossary/Protocol\">Protocol (プロトコル)</a></li><li><a href=\"/ja/docs/Glossary/Prototype\">Prototype</a></li><li><a href=\"/ja/docs/Glossary/Prototype-based_programming\">Prototype-based programming (プロトタイプベースプログラミング)</a></li><li><a href=\"/ja/docs/Glossary/Proxy_server\">Proxy server (プロキシーサーバー)</a></li><li><a href=\"/ja/docs/Glossary/Pseudo-class\">Pseudo-class</a></li><li><a href=\"/ja/docs/Glossary/Pseudo-element\">Pseudo-element (擬似要素)</a></li><li><a href=\"/ja/docs/Glossary/Pseudocode\">Pseudocode (擬似コード)</a></li><li><a href=\"/ja/docs/Glossary/Public-key_cryptography\">Public-key cryptography (公開鍵暗号)</a></li><li><a href=\"/ja/docs/Glossary/Python\">Python</a></li><li><a href=\"/ja/docs/Glossary/Quality_values\">Quality values (品質値)</a></li><li><a href=\"/ja/docs/Glossary/Quaternion\">Quaternion (四元数)</a></li><li><a href=\"/ja/docs/Glossary/QUIC\">QUIC</a></li><li><a href=\"/ja/docs/Glossary/RAIL\">RAIL</a></li><li><a href=\"/ja/docs/Glossary/RNG\">Random Number Generator (乱数発生器)</a></li><li><a href=\"/ja/docs/Glossary/Raster_image\">ラスターイメージ (Raster Image)</a></li><li><a href=\"/ja/docs/Glossary/Rate_limit\">Rate limit (レート制限)</a></li><li><a href=\"/ja/docs/Glossary/RDF\">RDF</a></li><li><a href=\"/ja/docs/Glossary/Real_User_Monitoring\">Real User Monitoring（RUM）</a></li><li><a href=\"/ja/docs/Glossary/Recursion\">Recursion (再帰)</a></li><li><a href=\"/ja/docs/Glossary/Reflow\">Reflow (再フロー)</a></li><li><a href=\"/ja/docs/Glossary/Regular_expression\">Regular expression (正規表現)</a></li><li><a href=\"/ja/docs/Glossary/Relying_party\">Relying party</a></li><li><a href=\"/ja/docs/Glossary/Render_blocking\">Render-blocking (レンダーブロッキング)</a></li><li><a href=\"/ja/docs/Glossary/Repaint\">Repaint (再描画)</a></li><li><a href=\"/ja/docs/Glossary/Replay_attack\">Replay attack</a></li><li><a href=\"/ja/docs/Glossary/Repo\">Repo (リポジトリー)</a></li><li><a href=\"/ja/docs/Glossary/Reporting_directive\">Reporting directive (報告ディレクティブ)</a></li><li><a href=\"/ja/docs/Glossary/Representation_header\">Representation header (表現ヘッダー)</a></li><li><a href=\"/ja/docs/Glossary/Request_header\">Request header (リクエストヘッダー)</a></li><li><a href=\"/ja/docs/Glossary/Resource_Timing\">Resource Timing</a></li><li><a href=\"/ja/docs/Glossary/Response_header\">Response header (レスポンスヘッダー)</a></li><li><a href=\"/ja/docs/Glossary/Responsive_web_design\">Responsive web design (レスポンシブウェブデザイン)</a></li><li><a href=\"/ja/docs/Glossary/REST\">REST</a></li><li><a href=\"/ja/docs/Glossary/RGB\">RGB</a></li><li><a href=\"/ja/docs/Glossary/RIL\">RIL</a></li><li><a href=\"/ja/docs/Glossary/Robots.txt\">Robots.txt</a></li><li><a href=\"/ja/docs/Glossary/Round_Trip_Time\">Round Trip Time (ラウンドトリップタイム)</a></li><li><a href=\"/ja/docs/Glossary/Router\">Router (ルーター)</a></li><li><a href=\"/ja/docs/Glossary/RSS\">RSS</a></li><li><a href=\"/ja/docs/Glossary/Rsync\">Rsync</a></li><li><a href=\"/ja/docs/Glossary/RTCP\">RTCP (RTP Control Protocol)</a></li><li><a href=\"/ja/docs/Glossary/RTF\">RTF</a></li><li><a href=\"/ja/docs/Glossary/RTL\">RTL (右書き)</a></li><li><a href=\"/ja/docs/Glossary/RTP\">RTP (Real-time Transport Protocol) and SRTP (Secure RTP)</a></li><li><a href=\"/ja/docs/Glossary/RTSP\">RTSP: Real-time streaming protocol</a></li><li><a href=\"/ja/docs/Glossary/Ruby\">Ruby</a></li><li><a href=\"/ja/docs/Glossary/Safe\">Safe (安全)</a></li><li><a href=\"/ja/docs/Glossary/Salt\">Salt</a></li><li><a href=\"/ja/docs/Glossary/Same-origin_policy\">Same-origin policy (同一オリジンポリシー)</a></li><li><a href=\"/ja/docs/Glossary/SCM\">SCM</a></li><li><a href=\"/ja/docs/Glossary/Scope\">Scope (スコープ)</a></li><li><a href=\"/ja/docs/Glossary/Screen_reader\">Screen reader (スクリーンリーダー)</a></li><li><a href=\"/ja/docs/Glossary/Script-supporting_element\">Script-supporting element (スクリプト対応要素)</a></li><li><a href=\"/ja/docs/Glossary/Scroll_boundary\">Scroll boundary （スクロール境界）</a></li><li><a href=\"/ja/docs/Glossary/Scroll_chaining\">Scroll chaining （スクロール連鎖）</a></li><li><a href=\"/ja/docs/Glossary/Scroll_container\">Scroll container (スクロールコンテナー)</a></li><li><a href=\"/ja/docs/Glossary/Scroll_snap\">Scroll snap</a></li><li><a href=\"/ja/docs/Glossary/SCTP\">SCTP</a></li><li><a href=\"/ja/docs/Glossary/SDK\">SDK (Software Development Kit)</a></li><li><a href=\"/ja/docs/Glossary/SDP\">SDP</a></li><li><a href=\"/ja/docs/Glossary/Search_engine\">Search engine (検索エンジン)</a></li><li><a href=\"/ja/docs/Glossary/Secure_Context\">Secure Context (安全なコンテキスト)</a></li><li><a href=\"/ja/docs/Glossary/SSL\">SSL</a></li><li><a href=\"/ja/docs/Glossary/CSS_Selector\">Selector (セレクター) (CSS)</a></li><li><a href=\"/ja/docs/Glossary/Self-Executing_Anonymous_Function\">Self-Executing Anonymous Function (自己実行無名関数)</a></li><li><a href=\"/ja/docs/Glossary/Semantics\">Semantics (セマンティクス)</a></li><li><a href=\"/ja/docs/Glossary/SEO\">SEO</a></li><li><a href=\"/ja/docs/Glossary/Serializable_object\">Serializable object （シリアライズ可能オブジェクト）</a></li><li><a href=\"/ja/docs/Glossary/Serialization\">Serialization (シリアライズ)</a></li><li><a href=\"/ja/docs/Glossary/Server\">Server (サーバー)</a></li><li><a href=\"/ja/docs/Glossary/Server_Timing\">Server Timing</a></li><li><a href=\"/ja/docs/Glossary/Session_Hijacking\">Session Hijacking</a></li><li><a href=\"/ja/docs/Glossary/SGML\">SGML</a></li><li><a href=\"/ja/docs/Glossary/Shadow_tree\">Shadow tree (シャドウツリー)</a></li><li><a href=\"/ja/docs/Glossary/Shallow_copy\">Shallow copy (シャローコピー)</a></li><li><a href=\"/ja/docs/Glossary/Shim\">Shim (シム)</a></li><li><a href=\"/ja/docs/Glossary/Signature\">Signature (シグネチャ)</a></li><li><a href=\"/ja/docs/Glossary/SIMD\">SIMD</a></li><li><a href=\"/ja/docs/Glossary/SISD\">SISD</a></li><li><a href=\"/ja/docs/Glossary/Site\">Site (サイト)</a></li><li><a href=\"/ja/docs/Glossary/Site_map\">Site map (サイトマップ)</a></li><li><a href=\"/ja/docs/Glossary/SLD\">SLD</a></li><li><a href=\"/ja/docs/Glossary/Sloppy_mode\">Sloppy モード</a></li><li><a href=\"/ja/docs/Glossary/Slug\">Slug (スラグ)</a></li><li><a href=\"/ja/docs/Glossary/Smoke_Test\">Smoke Test (スモークテスト)</a></li><li><a href=\"/ja/docs/Glossary/SMPTE\">SMPTE (Society of Motion Picture and Television Engineers)</a></li><li><a href=\"/ja/docs/Glossary/SMTP\">SMTP</a></li><li><a href=\"/ja/docs/Glossary/Snake_case\">Snake case (スネークケース)</a></li><li><a href=\"/ja/docs/Glossary/Snap_positions\">Snap positions</a></li><li><a href=\"/ja/docs/Glossary/SOAP\">SOAP</a></li><li><a href=\"/ja/docs/Glossary/SPA\">SPA (単一ページアプリケーション)</a></li><li><a href=\"/ja/docs/Glossary/Specification\">Specification</a></li><li><a href=\"/ja/docs/Glossary/Speculative_parsing\">Speculative parsing (投機的解析)</a></li><li><a href=\"/ja/docs/Glossary/Speed_index\">Speed index (スピードインデックス)</a></li><li><a href=\"/ja/docs/Glossary/SQL\">SQL</a></li><li><a href=\"/ja/docs/Glossary/SQL_Injection\">SQL Injection (SQL インジェクション)</a></li><li><a href=\"/ja/docs/Glossary/SRI\">SRI</a></li><li><a href=\"/ja/docs/Glossary/Stacking_context\">Stacking context (重ね合わせコンテキスト)</a></li><li><a href=\"/ja/docs/Glossary/State_machine\">State machine</a></li><li><a href=\"/ja/docs/Glossary/Statement\">Statement (文)</a></li><li><a href=\"/ja/docs/Glossary/Static_method\">Static method (静的メソッド)</a></li><li><a href=\"/ja/docs/Glossary/SSG\">Static site generator (SSG)</a></li><li><a href=\"/ja/docs/Glossary/Static_typing\">Static typing (静的型付け)</a></li><li><a href=\"/ja/docs/Glossary/Sticky_activation\">Sticky activation (粘着的な有効化)</a></li><li><a href=\"/ja/docs/Glossary/Strict_mode\">Strict mode (厳格モード)</a></li><li><a href=\"/ja/docs/Glossary/String\">String (文字列)</a></li><li><a href=\"/ja/docs/Glossary/Stringifier\">Stringifier (文字列化子)</a></li><li><a href=\"/ja/docs/Glossary/STUN\">STUN</a></li><li><a href=\"/ja/docs/Glossary/Style_origin\">Style origin (スタイルオリジン)</a></li><li><a href=\"/ja/docs/Glossary/Stylesheet\">Stylesheet (スタイルシート)</a></li><li><a href=\"/ja/docs/Glossary/Submit_button\">Submit button (送信ボタン)</a></li><li><a href=\"/ja/docs/Glossary/SVG\">SVG</a></li><li><a href=\"/ja/docs/Glossary/SVN\">SVN</a></li><li><a href=\"/ja/docs/Glossary/Symbol\">Symbol</a></li><li><a href=\"/ja/docs/Glossary/Symmetric-key_cryptography\">Symmetric-key cryptography (共通鍵暗号)</a></li><li><a href=\"/ja/docs/Glossary/Synchronous\">Synchronous (同期通信方式)</a></li><li><a href=\"/ja/docs/Glossary/Syntax\">Syntax (構文)</a></li><li><a href=\"/ja/docs/Glossary/Syntax_error\">Syntax error (構文エラー)</a></li><li><a href=\"/ja/docs/Glossary/Synthetic_monitoring\">Synthetic monitoring (合成モニタリング)</a></li><li><a href=\"/ja/docs/Glossary/Table_Grid_Box\">Table Grid Box (表グリッドボックス)</a></li><li><a href=\"/ja/docs/Glossary/Table_Wrapper_Box\">Table Wrapper Box (表ラッパーボックス)</a></li><li><a href=\"/ja/docs/Glossary/Tag\">Tag (タグ)</a></li><li><a href=\"/ja/docs/Glossary/TCP\">TCP</a></li><li><a href=\"/ja/docs/Glossary/TCP_handshake\">TCP handshake (TCP ハンドシェイク)</a></li><li><a href=\"/ja/docs/Glossary/TCP_slow_start\">TCP slow start</a></li><li><a href=\"/ja/docs/Glossary/Telnet\">Telnet</a></li><li><a href=\"/ja/docs/Glossary/Texel\">Texel (テクセル)</a></li><li><a href=\"/ja/docs/Glossary/Khronos\">The Khronos Group (クロノス・グループ)</a></li><li><a href=\"/ja/docs/Glossary/Thread\">Thread (スレッド)</a></li><li><a href=\"/ja/docs/Glossary/Three_js\">Three js</a></li><li><a href=\"/ja/docs/Glossary/Throttle\">Throttle (スロットル)</a></li><li><a href=\"/ja/docs/Glossary/Time_to_first_byte\">Time to first byte （最初のバイトまでの時間）</a></li><li><a href=\"/ja/docs/Glossary/Time_to_interactive\">Time to interactive (対話までの時間)</a></li><li><a href=\"/ja/docs/Glossary/TLD\">TLD (トップレベルドメイン)</a></li><li><a href=\"/ja/docs/Glossary/TOFU\">TOFU</a></li><li><a href=\"/ja/docs/Glossary/Top_layer\">Top layer (最上位レイヤー)</a></li><li><a href=\"/ja/docs/Glossary/Transient_activation\">Transient activation (一時的な有効化)</a></li><li><a href=\"/ja/docs/Glossary/TLS\">Transport Layer Security (TLS)</a></li><li><a href=\"/ja/docs/Glossary/Tree_shaking\">Tree shaking</a></li><li><a href=\"/ja/docs/Glossary/Trident\">Trident</a></li><li><a href=\"/ja/docs/Glossary/Truthy\">Truthy (真値)</a></li><li><a href=\"/ja/docs/Glossary/TTL\">TTL</a></li><li><a href=\"/ja/docs/Glossary/TURN\">TURN</a></li><li><a href=\"/ja/docs/Glossary/Type\">Type (型)</a></li><li><a href=\"/ja/docs/Glossary/Type_coercion\">Type coercion (型強制)</a></li><li><a href=\"/ja/docs/Glossary/Type_Conversion\">Type conversion (型変換)</a></li><li><a href=\"/ja/docs/Glossary/TypeScript\">TypeScript</a></li><li><a href=\"/ja/docs/Glossary/UAAG\">UAAG</a></li><li><a href=\"/ja/docs/Glossary/UDP\">UDP (User Datagram Protocol)</a></li><li><a href=\"/ja/docs/Glossary/UI\">UI</a></li><li><a href=\"/ja/docs/Glossary/Undefined\">undefined</a></li><li><a href=\"/ja/docs/Glossary/Unicode\">Unicode</a></li><li><a href=\"/ja/docs/Glossary/Unix_time\">Unix time (UNIX 時間)</a></li><li><a href=\"/ja/docs/Glossary/URI\">URI</a></li><li><a href=\"/ja/docs/Glossary/URL\">URL</a></li><li><a href=\"/ja/docs/Glossary/URN\">URN</a></li><li><a href=\"/ja/docs/Glossary/Usenet\">Usenet</a></li><li><a href=\"/ja/docs/Glossary/User_agent\">User agent (ユーザーエージェント)</a></li><li><a href=\"/ja/docs/Glossary/UTF-8\">UTF-8</a></li><li><a href=\"/ja/docs/Glossary/UUID\">UUID</a></li><li><a href=\"/ja/docs/Glossary/UX\">UX</a></li><li><a href=\"/ja/docs/Glossary/Validator\">Validator (バリデーター)</a></li><li><a href=\"/ja/docs/Glossary/Value\">Value (値)</a></li><li><a href=\"/ja/docs/Glossary/Variable\">Variable (変数)</a></li><li><a href=\"/ja/docs/Glossary/Vendor_Prefix\">Vendor Prefix (ベンダー接頭辞)</a></li><li><a href=\"/ja/docs/Glossary/Viewport\">Viewport (ビューポート)</a></li><li><a href=\"/ja/docs/Glossary/Visual_Viewport\">Visual Viewport (視覚的ビューポート)</a></li><li><a href=\"/ja/docs/Glossary/Void_element\">Void element （空要素）</a></li><li><a href=\"/ja/docs/Glossary/VoIP\">VoIP</a></li><li><a href=\"/ja/docs/Glossary/W3C\">W3C</a></li><li><a href=\"/ja/docs/Glossary/WAI\">WAI</a></li><li><a href=\"/ja/docs/Glossary/WCAG\">WCAG</a></li><li><a href=\"/ja/docs/Glossary/Web_performance\">Web performance (ウェブの性能)</a></li><li><a href=\"/ja/docs/Glossary/Web_server\">Web server (ウェブサーバー)</a></li><li><a href=\"/ja/docs/Glossary/Web_standards\">Web standards (ウェブ標準)</a></li><li><a href=\"/ja/docs/Glossary/WebAssembly\">WebAssembly</a></li><li><a href=\"/ja/docs/Glossary/WebDAV\">WebDAV</a></li><li><a href=\"/ja/docs/Glossary/WebExtensions\">WebExtensions</a></li><li><a href=\"/ja/docs/Glossary/WebGL\">WebGL</a></li><li><a href=\"/ja/docs/Glossary/WebIDL\">WebIDL</a></li><li><a href=\"/ja/docs/Glossary/WebKit\">WebKit</a></li><li><a href=\"/ja/docs/Glossary/WebM\">WebM</a></li><li><a href=\"/ja/docs/Glossary/WebP\">WebP</a></li><li><a href=\"/ja/docs/Glossary/WebRTC\">WebRTC</a></li><li><a href=\"/ja/docs/Glossary/WebSockets\">WebSockets</a></li><li><a href=\"/ja/docs/Glossary/WebVTT\">WebVTT</a></li><li><a href=\"/ja/docs/Glossary/WHATWG\">WHATWG</a></li><li><a href=\"/ja/docs/Glossary/Whitespace\">Whitespace (ホワイトスペース)</a></li><li><a href=\"/ja/docs/Glossary/WindowProxy\">WindowProxy</a></li><li><a href=\"/ja/docs/Glossary/World_Wide_Web\">World Wide Web</a></li><li><a href=\"/ja/docs/Glossary/Wrapper\">Wrapper (ラッパー)</a></li><li><a href=\"/ja/docs/Glossary/XForms\">XForms</a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">非推奨</span>\n</abbr></li><li><a href=\"/ja/docs/Glossary/XHTML\">XHTML</a></li><li><a href=\"/ja/docs/Glossary/XInclude\">XInclude</a></li><li><a href=\"/ja/docs/Glossary/XLink\">XLink</a></li><li><a href=\"/ja/docs/Glossary/XML\">XML</a></li><li><a href=\"/ja/docs/Glossary/XMLHttpRequest\">XHR (XMLHttpRequest)</a></li><li><a href=\"/ja/docs/Glossary/XPath\">XPath</a></li><li><a href=\"/ja/docs/Glossary/XQuery\">XQuery</a></li><li><a href=\"/ja/docs/Glossary/XSLT\">XSLT</a></li><li><a href=\"/ja/docs/Glossary/Zstandard_compression\">Zstandard compression</a></li></ol>\n </li>\n </ol>\n","sidebarMacro":"GlossarySidebar","body":[{"type":"prose","value":{"id":null,"title":null,"isH3":false,"content":"<p>\n <strong>Baseline</strong> （ベースライン）は、ブラウザー間で動作するウェブプラットフォームの機能を確認します。\n Baseline は、サイトの訪問者に互換性の問題を引き起こす可能性が低くなった時期を示すことで、その機能を使用するタイミングを決定するのに役立ちます。\n</p>\n<p>API、一連の CSS プロパティ、JavaScript 構文などの Baseline 機能は、Chrome、Edge、Firefox、Safari など、デスクトップやモバイルで広く使われている有名なブラウザーで一貫して動作します。</p>\n<p>Baseline 機能とは、現在の安定したブラウザーで新たに利用可能になったか、あるいは長期にわたる継続的なサポートにより広く利用可能になった機能のことを言います。</p>"}},{"type":"prose","value":{"id":"バッジ","title":"バッジ","isH3":false,"content":"<p>\n <img src=\"/ja/docs/Glossary/Baseline/Compatibility/high.png\" alt=\"チェックマークが付いた緑色のウィジェット：Baseline: Widely available. 4 つのブラウザーのロゴ、すべてチェックマーク付き。\" width=\"1205\" height=\"136\" loading=\"lazy\">\n</p>\n<p><strong>Widely available</strong> の Baseline バッジが表示されている場合、その機能は各 Baseline ブラウザーで一貫してサポートされてきた歴史があると信頼できます。<em>Widely available</em> である機能とは、何年も前から複数のブラウザーでサポートされている機能です。まだ最新のブラウザーリリースに対応していないものであっても、多くのブラウザーやデバイスで動作します。</p>\n<p>\n <img src=\"/ja/docs/Glossary/Baseline/Compatibility/limited.png\" alt=\"チェックマークが付いた青色のウィジェット：Baseline 2022: Newly available. 4 つのブラウザーのロゴ、すべてチェックマーク付き。\" width=\"1205\" height=\"136\" loading=\"lazy\">\n</p>\n<p><strong>Newly available</strong> の Baseline バッジが表示されている場合、その機能は少なくとも各 Baseline ブラウザーの最新の安定版で動作しており、多くの場合それ以上の動作が確認されています。<em>Newly available</em> である機能は、最新のブラウザーでは動作しますが、古いブラウザーやデバイスでは動作しない可能性があります。<em>Newly available</em> である機能を使用する前に、サイトの利用者をよく検討してください。</p>\n<p>\n <img src=\"/ja/docs/Glossary/Baseline/Compatibility/low.png\" alt=\"バツマークが付いた灰色のウィジェット：Limited availability. 4 つのブラウザーのロゴ、2 つにチェックマーク、2 つにバツマーク。\" width=\"1205\" height=\"136\" loading=\"lazy\">\n</p>\n<p><strong>Limited availability</strong> バッジが表示されている場合、その機能は Baseline ではありません。その機能に依存する前に、あなたのサイトのユーザーを対象とした調査とテストを行うか、Baseline になるのを待ちましょう。</p>"}},{"type":"prose","value":{"id":"ブラウザーセット","title":"ブラウザーセット","isH3":false,"content":"<p>Baseline は、以下のブラウザーでの可用性を追跡します。</p>\n<ul>\n <li>Apple Safari (iOS)</li>\n <li>Apple Safari (macOS)</li>\n <li>Google Chrome (Android)</li>\n <li>Google Chrome (desktop)</li>\n <li>Microsoft Edge (desktop)</li>\n <li>Mozilla Firefox (Android)</li>\n <li>Mozilla Firefox (desktop)</li>\n</ul>"}},{"type":"prose","value":{"id":"その他の注意事項","title":"その他の注意事項","isH3":false,"content":"<p>Baseline はサポートの概要であり、すべての状況をカバーしているわけではありません。もしあなたのサイトが、古いデバイスやブラウザーのリリース、または Baseline でカバーされていないブラウザーで動作する必要がある場合、あなた自身で調査やテストを行う必要があるかもしれません。Baseline があなたの状況をカバーしていない場合は、その機能を採用する前に MDN にあるブラウザーの互換性テーブルを読んだり <a href=\"https://caniuse.com/\" class=\"external\" target=\"_blank\">caniuse.com</a> を参照することを検討してください。</p>"}},{"type":"prose","value":{"id":"貢献するには","title":"貢献するには","isH3":false,"content":"<p>Baseline は W3C WebDX Community Group のコミュニティ活動であり、MDN のオープンソースブラウザー互換性データに依存しています。質問やフィードバックがある場合、または Baseline のステータスレポートがカバーする機能の更新や拡張に協力したい場合は、<a href=\"https://github.com/web-platform-dx/web-features\" class=\"external\" target=\"_blank\">web-platform-dx/web-features</a> にアクセスして参加してください。</p>"}},{"type":"prose","value":{"id":"関連情報","title":"関連情報","isH3":false,"content":"<ul>\n <li><a href=\"/ja/docs/Learn/Tools_and_testing/Cross_browser_testing\">ブラウザー横断テスト</a></li>\n <li><a href=\"https://github.com/web-platform-dx/web-features\" class=\"external\" target=\"_blank\">web-platform-dx/web-features repository</a></li>\n <li><a href=\"https://www.w3.org/community/webdx/\" class=\"external\" target=\"_blank\">W3C WebDX Community Group</a></li>\n <li><a href=\"https://github.com/mdn/browser-compat-data\" class=\"external\" target=\"_blank\">mdn/browser-compat-data repository</a></li>\n</ul>"}}],"toc":[{"text":"バッジ","id":"バッジ"},{"text":"ブラウザーセット","id":"ブラウザーセット"},{"text":"その他の注意事項","id":"その他の注意事項"},{"text":"貢献するには","id":"貢献するには"},{"text":"関連情報","id":"関連情報"}],"summary":"Baseline （ベースライン）は、ブラウザー間で動作するウェブプラットフォームの機能を確認します。\n Baseline は、サイトの訪問者に互換性の問題を引き起こす可能性が低くなった時期を示すことで、その機能を使用するタイミングを決定するのに役立ちます。","popularity":0,"modified":"2024-04-13T07:52:50.000Z","other_translations":[{"locale":"de","title":"Baseline (Kompatibilität)","native":"Deutsch"},{"locale":"en-US","title":"Baseline (compatibility)","native":"English (US)"},{"locale":"fr","title":"Baseline (compatibilité)","native":"Français"},{"locale":"ko","title":"기준 (호환성)","native":"한국어"},{"locale":"zh-CN","title":"基线（兼容性）","native":"中文 (简体)"}],"pageType":"unknown","source":{"folder":"ja/glossary/baseline/compatibility","github_url":"https://github.com/mdn/translated-content/blob/main/files/ja/glossary/baseline/compatibility/index.md","last_commit_url":"https://github.com/mdn/translated-content/commit/26f415177a4f7e3d6b63168d783b286f0a4677a6","filename":"index.md"},"short_title":"Baseline (互換性)","parents":[{"uri":"/ja/docs/Glossary","title":"MDN Web Docs 用語集"},{"uri":"/ja/docs/Glossary/Baseline","title":"Baseline"},{"uri":"/ja/docs/Glossary/Baseline/Compatibility","title":"Baseline (互換性)"}],"pageTitle":"Baseline (互換性) - MDN Web Docs 用語集: ウェブ関連用語の定義 | MDN","noIndexing":false}}</script></body></html>