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itemscope itemtype="http://schema.org/Article"> <figure class="magazine"> <div class="image" style="background-image: url(https://images.theconversation.com/files/628057/original/file-20241024-19-4ehrjj.jpg?ixlib=rb-4.1.0&rect=0%2C814%2C6599%2C3299&q=45&auto=format&w=1356&h=668&fit=crop);"> <div class="placeholder-container" style="--aspect-ratio-percent:65.0%;--background-color:#688cac"><img alt="Smiling girl waking up in the morning." class="lazyloaded" src="https://images.theconversation.com/files/628057/original/file-20241024-19-4ehrjj.jpg?ixlib=rb-4.1.0&rect=60%2C0%2C6720%2C4376&q=20&auto=format&w=320&fit=clip&dpr=2&usm=12&cs=strip" data-id="628057" itemprop="image"></div> </div> <div class="wrapper"> <figcaption> Your internal body clock can help wake you up without an alarm. <span class="attribution"><a class="source" href="https://www.gettyimages.com/detail/photo/young-african-american-girl-waking-up-royalty-free-image/1276466962?phrase=child+sleeping%2C+alarm+clock&adppopup=true">Riska/E+ via Getty Images</a></span> </figcaption> </div> <div class="magazine-title"> <div class="wrapper"> <header class="content-header-container grid-twelve large-grid-eleven"> <div> <div class="content-header-block"> <h1 class="legacy entry-title instapaper_title" itemprop="headline"> <strong> Why do I feel better when I wake myself up instead of relying on an alarm? A neurologist explains the science of a restful night’s sleep </strong> </h1> </div> </div> <div class="timestamps"> <time datetime="2024-11-18T13:25:23Z" itemprop="datePublished" content="2024-11-18T13:25:23Z">Published: November 18, 2024 1.25pm GMT</time> </div> </header> </div> </div> </figure> <div class="wrapper"> <div class="content-sidebar grid-four large-grid-four grid-last"> <section class="content-authors"> <div class="content-authors-synopsis"> <a href="#" class="content-authors-toggle"> <i class="icon-caret-down"></i> <i class="icon-caret-up"></i> <span class="nobr">Beth Ann Malow</span>, <em class="institution_name">Vanderbilt University</em> </a> </div> <div class="content-authors-group"> <h3 class="border">Author</h3> <ol> <li class="vcard" id="author-595273" itemprop="author" itemscope="" itemtype="http://schema.org/Person"> <a rel="author" itemprop="url" href="/profiles/beth-ann-malow-1297289"> <img alt="" class="lazyload" data-src="https://cdn.theconversation.com/avatars/1297289/width170/file-20211221-172009-nxejn6.jpg" src="https://cdn.theconversation.com/static/tc/author/width170_default-bea415b3a0223821a698f6e3f6d5ab99.jpg" itemprop="image"> <span class="fn author-name" itemprop="name"> Beth Ann Malow </span> </a> <p class="role"> Professor of Neurology and Pediatrics, Vanderbilt University </p> </li> </ol> </div> </section> <section class="content-disclosure-statement"> <h3 class="border">Disclosure statement</h3> <p><span>Beth Ann Malow receives funding from the American Academy of Sleep Medicine and previously received funding from Autism Speaks, National Institutes of Health, Department of Defense, and the Patient Centered Outcomes Research Institute. </span></p> </section> <section class="content-partners"> <h3 class="border">Partners</h3> <p class="disclosure-logo clearfix"><a class="logo" href="/institutions/vanderbilt-university-1293"><picture><source 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data-srcset="https://images.theconversation.com/files/281719/original/file-20190628-76743-26slbc.png?ixlib=rb-4.1.0&q=45&auto=format&w=600&h=293&fit=crop&dpr=1 600w, https://images.theconversation.com/files/281719/original/file-20190628-76743-26slbc.png?ixlib=rb-4.1.0&q=30&auto=format&w=600&h=293&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/281719/original/file-20190628-76743-26slbc.png?ixlib=rb-4.1.0&q=15&auto=format&w=600&h=293&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/281719/original/file-20190628-76743-26slbc.png?ixlib=rb-4.1.0&q=45&auto=format&w=754&h=368&fit=crop&dpr=1 754w, https://images.theconversation.com/files/281719/original/file-20190628-76743-26slbc.png?ixlib=rb-4.1.0&q=30&auto=format&w=754&h=368&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/281719/original/file-20190628-76743-26slbc.png?ixlib=rb-4.1.0&q=15&auto=format&w=754&h=368&fit=crop&dpr=3 2262w" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px"></div> <figcaption> <span class="caption"></span> </figcaption> </figure> <p><em><a href="https://theconversation.com/us/topics/curious-kids-36782">Curious Kids</a> is a series for children of all ages. If you have a question you’d like an expert to answer, send it to <a href="mailto:curiouskidsus@theconversation.com">curiouskidsus@theconversation.com</a>.</em></p> <hr> <blockquote> <p><strong>Why do I feel better rested when I wake myself up than I do if my alarm or another person wakes me up? – Calleigh H., age 11, Oklahoma</strong></p> </blockquote> <hr> <p>We’ve all experienced this: You’re in the middle of a lovely dream. Perhaps you’re flying. As you’re soaring through the air, you meet an eagle. The eagle looks at you, opens its beak and – BEEP! BEEP! BEEP! </p> <p>Your alarm goes off. Dream over, time to get up.</p> <p>Many people – kids and adults alike – notice that when they wake up naturally from sleep, they feel more alert than if an alarm or another person, like a parent, wakes them up. Why is that?</p><div class="slot clear" data-id="17"> <div class="inline-promos-skeleton"> <h5></h5> <button></button> </div> </div> <p><a href="https://scholar.google.com/citations?user=ZddlKEoAAAAJ&hl=en">I’m a neurologist</a> who studies the brain, specifically what happens in the brain when you’re asleep. I also take care of children and adults who don’t sleep well and want to sleep better. My research involves working with parents to help them teach their children good sleep habits. </p> <p>To understand how to sleep better, and why waking up naturally from sleep helps you feel more alert, you need to start by understanding sleep cycles.</p> <h2>The sleep cycle</h2> <p>The <a href="https://www.nhlbi.nih.gov/health/sleep/stages-of-sleep">sleep cycle</a> consists of four stages. One of these is REM, which stands for rapid eye movements. The other three are non-REM stages. When you fall asleep, you first go into a <a href="https://theconversation.com/curious-kids-why-dont-people-fall-out-of-bed-when-they-are-sleeping-120282">state of drowsiness</a> called non-REM Stage 1.</p> <p>This is followed by deeper stages of sleep, called non-REM stages 2 and 3. Each stage of non-REM is deeper than the one before. Then, about 90 minutes after you first fall asleep, you enter the fourth stage, which is REM sleep. This is a stage of lighter sleep where you do much of your dreaming. After a few minutes, you return to non-REM sleep again.</p> <figure class="align-center "> <div class="placeholder-container" style="--aspect-ratio-percent:100.0%;--background-color:#a89266"><img alt="Segments of a circle indicate the four stages of the sleep cycle: Non-REM 1, Non-REM 2, Non-REM 3, and REM." class="lazyload" data-src="https://images.theconversation.com/files/629324/original/file-20241031-17-xejhji.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=754&fit=clip" data-srcset="https://images.theconversation.com/files/629324/original/file-20241031-17-xejhji.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=600&h=600&fit=crop&dpr=1 600w, https://images.theconversation.com/files/629324/original/file-20241031-17-xejhji.jpg?ixlib=rb-4.1.0&q=30&auto=format&w=600&h=600&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/629324/original/file-20241031-17-xejhji.jpg?ixlib=rb-4.1.0&q=15&auto=format&w=600&h=600&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/629324/original/file-20241031-17-xejhji.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=754&h=754&fit=crop&dpr=1 754w, https://images.theconversation.com/files/629324/original/file-20241031-17-xejhji.jpg?ixlib=rb-4.1.0&q=30&auto=format&w=754&h=754&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/629324/original/file-20241031-17-xejhji.jpg?ixlib=rb-4.1.0&q=15&auto=format&w=754&h=754&fit=crop&dpr=3 2262w" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px"></div> <figcaption> <span class="caption">The four stages of the sleep cycle.</span> <span class="attribution"><span class="source">The Conversation</span>, <a class="license" href="http://creativecommons.org/licenses/by/4.0/">CC BY</a></span> </figcaption> </figure> <p>These cycles repeat themselves throughout the night, with most people having four to six cycles of non-REM sleep alternating with REM sleep each night. As the night goes on, the cycles contain less non-REM sleep and more REM sleep. This is why it’s important to get enough sleep, so that the body can get <a href="https://www.sleepfoundation.org/stages-of-sleep">enough of both</a> REM sleep and non-REM sleep.</p> <h2>REM vs. non-REM sleep</h2> <p>How do researchers like me know that a person is in non-REM vs. REM sleep? In the sleep lab, we can tell from their brain waves, eye movements and the tension in their muscles, like in the chin. These are measured by putting sensors called electrodes on the scalp, around the eyes and on the chin.</p> <p>These electrodes pick up brain activity, which varies from waves that are low in amplitude (the height of the wave) and relatively fast to waves that are high in amplitude (a taller wave) and relatively slow. When we are awake, the height of the waves is low and the waves are relatively fast. In contrast, during sleep, the waves get higher and slower. </p> <p>Non-REM Stage 3 has the tallest and slowest waves of all the sleep stages. In REM sleep, brain waves are low in amplitude and relatively fast, and the eye movements are rapid, too. People need both non-REM and REM stages for a healthy brain, <a href="https://theconversation.com/students-could-get-more-sleep-and-learn-better-if-school-started-a-little-later-218874">so they can learn and remember</a>.</p> <h2>Waking up naturally</h2> <p>When you wake up in the morning on your own, it’s usually as you come to the end of whatever stage of sleep you were in. Think of it like getting off the train when it comes to a stop at the station. But when an alarm or someone else wakes you up, it’s like jumping off the train between stops, which can feel jolting. That’s why it’s good to wake up naturally whenever possible.</p> <p>People can actually train their brains to wake up at a consistent time each day that is a natural stopping point. Brains have an <a href="https://theconversation.com/biological-clocks-how-does-our-body-know-that-time-goes-by-211753">internal 24-hour clock</a> that dictates when you first start to feel sleepy and when you wake up. This is related to our <a href="https://my.clevelandclinic.org/health/articles/circadian-rhythm">circadian rhythms</a>. </p> <figure> <div class="placeholder-container" style="--aspect-ratio-percent:56.25%;--background-color:#fff"><iframe class="lazyload" data-src="https://www.youtube.com/embed/zLHJrcsVq8g?wmode=transparent&start=0" frameborder="0" allowfullscreen="" width="100%" height="400"></iframe></div> <figcaption><span class="caption">You can adjust your circadian rhythm so that you wake naturally each morning.</span></figcaption> </figure> <h2>Training the brain to wake up at a consistent time</h2> <p>First, it’s important to go to bed at a consistent time that allows you to get enough sleep. If you stay up too late doing homework or looking at your phone, that can interfere with getting enough sleep and make you dependent on an alarm – or your parents – to wake you up.</p> <p>Other things that can help you fall asleep at a healthy time include getting physical activity during the day and <a href="https://theconversation.com/whats-the-best-diet-for-healthy-sleep-a-nutritional-epidemiologist-explains-what-food-choices-will-help-you-get-more-restful-zs-219955">avoiding coffee, soda or other drinks or foods that contain caffeine</a>. Physical activity increases brain chemicals that make it easier to fall asleep, while caffeine does the opposite and keeps you awake.</p> <p>Second, you need to be aware of <a href="https://theconversation.com/are-we-sleep-deprived-or-just-darkness-deprived-49412">light in your environment</a>. <a href="https://theconversation.com/light-at-night-can-disrupt-circadian-rhythms-in-children-are-there-long-term-risks-94952">Light too late in the evening</a>, including from screens, can interfere with your brain’s production of a <a href="https://www.mayoclinic.org/drugs-supplements-melatonin/art-20363071">chemical called melatonin</a> that promotes sleep. But in the morning when you wake up, you need to be exposed to light. </p> <p>Morning light helps you synchronize, or align, your circadian rhythms with the outside world and makes it easier to fall asleep at night. The easiest way to do this is to open up your shades or curtains in your room. In the winter, some people use light boxes to simulate sunlight, which helps them align their rhythms.</p> <h2>Benefits of a good night’s sleep</h2> <p>A good sleep routine entails both a consistent bedtime and wake time and regularly getting enough sleep. <a href="https://www.thensf.org/how-many-hours-of-sleep-do-you-really-need/">That usually means</a> 9-11 hours for school-age kids who are not yet teens, and 8-10 hours for teens.</p> <p>This will help you be at your best to <a href="https://theconversation.com/students-could-get-more-sleep-and-learn-better-if-school-started-a-little-later-218874">learn at school</a>, <a href="https://theconversation.com/sleep-and-circadian-rhythm-problems-linked-with-poor-mental-health-new-research-223895">boost your mood</a>, help you <a href="https://theconversation.com/weight-loss-why-listening-to-your-circadian-rhythm-may-be-important-219444">maintain a healthy weight</a> and promote <a href="https://theconversation.com/sleep-quality-circadian-rhythm-and-metabolism-differ-in-women-and-men-new-review-reveals-this-could-affect-disease-risk-227481">many other aspects of health</a>.</p> <hr> <p><em>Hello, curious kids! Do you have a question you’d like an expert to answer? Ask an adult to send your question to <a href="mailto:curiouskidsus@theconversation.com">CuriousKidsUS@theconversation.com</a>. Please tell us your name, age and the city where you live.</em></p> <p><em>And since curiosity has no age limit – adults, let us know what you’re wondering, too. We won’t be able to answer every question, but we will do our best.</em></p> </div> <div class="grid-ten grid-prepend-two large-grid-nine grid-last content-topics topic-list"> <i class="icon-tag"></i> <ul> <li class="topic-list-item"> <a href="/topics/sleep-93">Sleep</a> </li> <li class="topic-list-item"> <a href="/topics/circadian-rhythms-94">Circadian rhythms</a> </li> <li class="topic-list-item"> <a href="/topics/rem-sleep-19414">REM sleep</a> </li> <li class="topic-list-item"> <a href="/topics/curious-kids-36782">Curious Kids</a> </li> <li class="topic-list-item"> <a href="/topics/non-rem-sleep-36786">Non-REM sleep</a> </li> <li class="topic-list-item"> <a href="/topics/sleep-cycles-70353">Sleep cycles</a> </li> <li class="topic-list-item"> <a href="/topics/curious-kids-us-74795">Curious Kids US</a> </li> </ul> </div> </div> <div class="slot grid-ten grid-prepend-two large-grid-nine grid-last mb5" data-id="15"></div> </div> <div class="wrapper"> <div 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i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:{};return this.i18nFormat&&this.i18nFormat.getResource?this.i18nFormat.getResource(e,t,s,i):this.resourceStore.getResource(e,t,s,i)}getUsedParamsDetails(){let e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};const t=["defaultValue","ordinal","context","replace","lng","lngs","fallbackLng","ns","keySeparator","nsSeparator","returnObjects","returnDetails","joinArrays","postProcess","interpolation"],s=e.replace&&"string"!=typeof e.replace;let i=s?e.replace:e;if(s&&void 0!==e.count&&(i.count=e.count),this.options.interpolation.defaultVariables&&(i={...this.options.interpolation.defaultVariables,...i}),!s){i={...i};for(const e of t)delete i[e]}return i}static hasDefaultValue(e){const t="defaultValue";for(const s in e)if(Object.prototype.hasOwnProperty.call(e,s)&&t===s.substring(0,12)&&void 0!==e[s])return!0;return!1}}const R=e=>e.charAt(0).toUpperCase()+e.slice(1);class C{constructor(e){this.options=e,this.supportedLngs=this.options.supportedLngs||!1,this.logger=o.create("languageUtils")}getScriptPartFromCode(e){if(!(e=S(e))||e.indexOf("-")<0)return null;const t=e.split("-");return 2===t.length?null:(t.pop(),"x"===t[t.length-1].toLowerCase()?null:this.formatLanguageCode(t.join("-")))}getLanguagePartFromCode(e){if(!(e=S(e))||e.indexOf("-")<0)return e;const t=e.split("-");return this.formatLanguageCode(t[0])}formatLanguageCode(e){if("string"==typeof e&&e.indexOf("-")>-1){if("undefined"!=typeof Intl&&void 0!==Intl.getCanonicalLocales)try{let t=Intl.getCanonicalLocales(e)[0];if(t&&this.options.lowerCaseLng&&(t=t.toLowerCase()),t)return t}catch(e){}const t=["hans","hant","latn","cyrl","cans","mong","arab"];let s=e.split("-");return this.options.lowerCaseLng?s=s.map((e=>e.toLowerCase())):2===s.length?(s[0]=s[0].toLowerCase(),s[1]=s[1].toUpperCase(),t.indexOf(s[1].toLowerCase())>-1&&(s[1]=R(s[1].toLowerCase()))):3===s.length&&(s[0]=s[0].toLowerCase(),2===s[1].length&&(s[1]=s[1].toUpperCase()),"sgn"!==s[0]&&2===s[2].length&&(s[2]=s[2].toUpperCase()),t.indexOf(s[1].toLowerCase())>-1&&(s[1]=R(s[1].toLowerCase())),t.indexOf(s[2].toLowerCase())>-1&&(s[2]=R(s[2].toLowerCase()))),s.join("-")}return this.options.cleanCode||this.options.lowerCaseLng?e.toLowerCase():e}isSupportedCode(e){return("languageOnly"===this.options.load||this.options.nonExplicitSupportedLngs)&&(e=this.getLanguagePartFromCode(e)),!this.supportedLngs||!this.supportedLngs.length||this.supportedLngs.indexOf(e)>-1}getBestMatchFromCodes(e){if(!e)return null;let t;return e.forEach((e=>{if(t)return;const s=this.formatLanguageCode(e);this.options.supportedLngs&&!this.isSupportedCode(s)||(t=s)})),!t&&this.options.supportedLngs&&e.forEach((e=>{if(t)return;const s=this.getLanguagePartFromCode(e);if(this.isSupportedCode(s))return t=s;t=this.options.supportedLngs.find((e=>e===s?e:e.indexOf("-")<0&&s.indexOf("-")<0?void 0:e.indexOf("-")>0&&s.indexOf("-")<0&&e.substring(0,e.indexOf("-"))===s||0===e.indexOf(s)&&s.length>1?e:void 0))})),t||(t=this.getFallbackCodes(this.options.fallbackLng)[0]),t}getFallbackCodes(e,t){if(!e)return[];if("function"==typeof e&&(e=e(t)),"string"==typeof e&&(e=[e]),Array.isArray(e))return e;if(!t)return e.default||[];let s=e[t];return s||(s=e[this.getScriptPartFromCode(t)]),s||(s=e[this.formatLanguageCode(t)]),s||(s=e[this.getLanguagePartFromCode(t)]),s||(s=e.default),s||[]}toResolveHierarchy(e,t){const s=this.getFallbackCodes(t||this.options.fallbackLng||[],e),i=[],n=e=>{e&&(this.isSupportedCode(e)?i.push(e):this.logger.warn(`rejecting language code not found in supportedLngs: ${e}`))};return"string"==typeof e&&(e.indexOf("-")>-1||e.indexOf("_")>-1)?("languageOnly"!==this.options.load&&n(this.formatLanguageCode(e)),"languageOnly"!==this.options.load&&"currentOnly"!==this.options.load&&n(this.getScriptPartFromCode(e)),"currentOnly"!==this.options.load&&n(this.getLanguagePartFromCode(e))):"string"==typeof e&&n(this.formatLanguageCode(e)),s.forEach((e=>{i.indexOf(e)<0&&n(this.formatLanguageCode(e))})),i}}let N=[{lngs:["ach","ak","am","arn","br","fil","gun","ln","mfe","mg","mi","oc","pt","pt-BR","tg","tl","ti","tr","uz","wa"],nr:[1,2],fc:1},{lngs:["af","an","ast","az","bg","bn","ca","da","de","dev","el","en","eo","es","et","eu","fi","fo","fur","fy","gl","gu","ha","hi","hu","hy","ia","it","kk","kn","ku","lb","mai","ml","mn","mr","nah","nap","nb","ne","nl","nn","no","nso","pa","pap","pms","ps","pt-PT","rm","sco","se","si","so","son","sq","sv","sw","ta","te","tk","ur","yo"],nr:[1,2],fc:2},{lngs:["ay","bo","cgg","fa","ht","id","ja","jbo","ka","km","ko","ky","lo","ms","sah","su","th","tt","ug","vi","wo","zh"],nr:[1],fc:3},{lngs:["be","bs","cnr","dz","hr","ru","sr","uk"],nr:[1,2,5],fc:4},{lngs:["ar"],nr:[0,1,2,3,11,100],fc:5},{lngs:["cs","sk"],nr:[1,2,5],fc:6},{lngs:["csb","pl"],nr:[1,2,5],fc:7},{lngs:["cy"],nr:[1,2,3,8],fc:8},{lngs:["fr"],nr:[1,2],fc:9},{lngs:["ga"],nr:[1,2,3,7,11],fc:10},{lngs:["gd"],nr:[1,2,3,20],fc:11},{lngs:["is"],nr:[1,2],fc:12},{lngs:["jv"],nr:[0,1],fc:13},{lngs:["kw"],nr:[1,2,3,4],fc:14},{lngs:["lt"],nr:[1,2,10],fc:15},{lngs:["lv"],nr:[1,2,0],fc:16},{lngs:["mk"],nr:[1,2],fc:17},{lngs:["mnk"],nr:[0,1,2],fc:18},{lngs:["mt"],nr:[1,2,11,20],fc:19},{lngs:["or"],nr:[2,1],fc:2},{lngs:["ro"],nr:[1,2,20],fc:20},{lngs:["sl"],nr:[5,1,2,3],fc:21},{lngs:["he","iw"],nr:[1,2,20,21],fc:22}],j={1:e=>Number(e>1),2:e=>Number(1!=e),3:e=>0,4:e=>Number(e%10==1&&e%100!=11?0:e%10>=2&&e%10<=4&&(e%100<10||e%100>=20)?1:2),5:e=>Number(0==e?0:1==e?1:2==e?2:e%100>=3&&e%100<=10?3:e%100>=11?4:5),6:e=>Number(1==e?0:e>=2&&e<=4?1:2),7:e=>Number(1==e?0:e%10>=2&&e%10<=4&&(e%100<10||e%100>=20)?1:2),8:e=>Number(1==e?0:2==e?1:8!=e&&11!=e?2:3),9:e=>Number(e>=2),10:e=>Number(1==e?0:2==e?1:e<7?2:e<11?3:4),11:e=>Number(1==e||11==e?0:2==e||12==e?1:e>2&&e<20?2:3),12:e=>Number(e%10!=1||e%100==11),13:e=>Number(0!==e),14:e=>Number(1==e?0:2==e?1:3==e?2:3),15:e=>Number(e%10==1&&e%100!=11?0:e%10>=2&&(e%100<10||e%100>=20)?1:2),16:e=>Number(e%10==1&&e%100!=11?0:0!==e?1:2),17:e=>Number(1==e||e%10==1&&e%100!=11?0:1),18:e=>Number(0==e?0:1==e?1:2),19:e=>Number(1==e?0:0==e||e%100>1&&e%100<11?1:e%100>10&&e%100<20?2:3),20:e=>Number(1==e?0:0==e||e%100>0&&e%100<20?1:2),21:e=>Number(e%100==1?1:e%100==2?2:e%100==3||e%100==4?3:0),22:e=>Number(1==e?0:2==e?1:(e<0||e>10)&&e%10==0?2:3)};const $=["v1","v2","v3"],A=["v4"],E={zero:0,one:1,two:2,few:3,many:4,other:5};class I{constructor(e){let t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};this.languageUtils=e,this.options=t,this.logger=o.create("pluralResolver"),this.options.compatibilityJSON&&!A.includes(this.options.compatibilityJSON)||"undefined"!=typeof Intl&&Intl.PluralRules||(this.options.compatibilityJSON="v3",this.logger.error("Your environment seems not to be Intl API compatible, use an Intl.PluralRules polyfill. Will fallback to the compatibilityJSON v3 format handling.")),this.rules=(()=>{const e={};return N.forEach((t=>{t.lngs.forEach((s=>{e[s]={numbers:t.nr,plurals:j[t.fc]}}))})),e})(),this.pluralRulesCache={}}addRule(e,t){this.rules[e]=t}clearCache(){this.pluralRulesCache={}}getRule(e){let t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(this.shouldUseIntlApi())try{const s=S("dev"===e?"en":e),i=t.ordinal?"ordinal":"cardinal",n=JSON.stringify({cleanedCode:s,type:i});if(n in this.pluralRulesCache)return this.pluralRulesCache[n];const o=new Intl.PluralRules(s,{type:i});return this.pluralRulesCache[n]=o,o}catch(e){return}return this.rules[e]||this.rules[this.languageUtils.getLanguagePartFromCode(e)]}needsPlural(e){let t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};const s=this.getRule(e,t);return this.shouldUseIntlApi()?s&&s.resolvedOptions().pluralCategories.length>1:s&&s.numbers.length>1}getPluralFormsOfKey(e,t){let s=arguments.length>2&&void 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n=()=>this.options.prepend&&i.toString()?this.options.prepend+i.toString():i.toString();return"v1"===this.options.compatibilityJSON?1===i?"":"number"==typeof i?`_plural_${i.toString()}`:n():"v2"===this.options.compatibilityJSON||this.options.simplifyPluralSuffix&&2===e.numbers.length&&1===e.numbers[0]?n():this.options.prepend&&s.toString()?this.options.prepend+s.toString():s.toString()}shouldUseIntlApi(){return!$.includes(this.options.compatibilityJSON)}}const T=function(e,t,s){let i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:".",n=!(arguments.length>4&&void 0!==arguments[4])||arguments[4],o=((e,t,s)=>{const i=d(e,s);return void 0!==i?i:d(t,s)})(e,t,s);return!o&&n&&"string"==typeof s&&(o=k(e,s,i),void 0===o&&(o=k(t,s,i))),o},D=e=>e.replace(/\$/g,"$$$$");class F{constructor(){let e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};this.logger=o.create("interpolator"),this.options=e,this.format=e.interpolation&&e.interpolation.format||(e=>e),this.init(e)}init(){let e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};e.interpolation||(e.interpolation={escapeValue:!0});const{escape:t,escapeValue:s,useRawValueToEscape:i,prefix:n,prefixEscaped:o,suffix:r,suffixEscaped:a,formatSeparator:l,unescapeSuffix:c,unescapePrefix:u,nestingPrefix:h,nestingPrefixEscaped:p,nestingSuffix:g,nestingSuffixEscaped:d,nestingOptionsSeparator:f,maxReplaces:y,alwaysFormat:b}=e.interpolation;this.escape=void 0!==t?t:v,this.escapeValue=void 0===s||s,this.useRawValueToEscape=void 0!==i&&i,this.prefix=n?m(n):o||"{{",this.suffix=r?m(r):a||"}}",this.formatSeparator=l||",",this.unescapePrefix=c?"":u||"-",this.unescapeSuffix=this.unescapePrefix?"":c||"",this.nestingPrefix=h?m(h):p||m("$t("),this.nestingSuffix=g?m(g):d||m(")"),this.nestingOptionsSeparator=f||",",this.maxReplaces=y||1e3,this.alwaysFormat=void 0!==b&&b,this.resetRegExp()}reset(){this.options&&this.init(this.options)}resetRegExp(){const e=(e,t)=>e&&e.source===t?(e.lastIndex=0,e):new RegExp(t,"g");this.regexp=e(this.regexp,`${this.prefix}(.+?)${this.suffix}`),this.regexpUnescape=e(this.regexpUnescape,`${this.prefix}${this.unescapePrefix}(.+?)${this.unescapeSuffix}${this.suffix}`),this.nestingRegexp=e(this.nestingRegexp,`${this.nestingPrefix}(.+?)${this.nestingSuffix}`)}interpolate(e,t,s,i){let n,o,r;const a=this.options&&this.options.interpolation&&this.options.interpolation.defaultVariables||{},c=e=>{if(e.indexOf(this.formatSeparator)<0){const n=T(t,a,e,this.options.keySeparator,this.options.ignoreJSONStructure);return this.alwaysFormat?this.format(n,void 0,s,{...i,...t,interpolationkey:e}):n}const n=e.split(this.formatSeparator),o=n.shift().trim(),r=n.join(this.formatSeparator).trim();return this.format(T(t,a,o,this.options.keySeparator,this.options.ignoreJSONStructure),r,s,{...i,...t,interpolationkey:o})};this.resetRegExp();const u=i&&i.missingInterpolationHandler||this.options.missingInterpolationHandler,h=i&&i.interpolation&&void 0!==i.interpolation.skipOnVariables?i.interpolation.skipOnVariables:this.options.interpolation.skipOnVariables;return[{regex:this.regexpUnescape,safeValue:e=>D(e)},{regex:this.regexp,safeValue:e=>this.escapeValue?D(this.escape(e)):D(e)}].forEach((t=>{for(r=0;n=t.regex.exec(e);){const s=n[1].trim();if(o=c(s),void 0===o)if("function"==typeof u){const t=u(e,n,i);o="string"==typeof t?t:""}else if(i&&Object.prototype.hasOwnProperty.call(i,s))o="";else{if(h){o=n[0];continue}this.logger.warn(`missed to pass in variable ${s} for interpolating ${e}`),o=""}else"string"==typeof o||this.useRawValueToEscape||(o=l(o));const a=t.safeValue(o);if(e=e.replace(n[0],a),h?(t.regex.lastIndex+=o.length,t.regex.lastIndex-=n[0].length):t.regex.lastIndex=0,r++,r>=this.maxReplaces)break}})),e}nest(e,t){let s,i,n,o=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{};const r=(e,t)=>{const s=this.nestingOptionsSeparator;if(e.indexOf(s)<0)return e;const i=e.split(new RegExp(`${s}[ ]*{`));let o=`{${i[1]}`;e=i[0],o=this.interpolate(o,n);const r=o.match(/'/g),a=o.match(/"/g);(r&&r.length%2==0&&!a||a.length%2!=0)&&(o=o.replace(/'/g,'"'));try{n=JSON.parse(o),t&&(n={...t,...n})}catch(t){return this.logger.warn(`failed parsing options string in nesting for key ${e}`,t),`${e}${s}${o}`}return n.defaultValue&&n.defaultValue.indexOf(this.prefix)>-1&&delete n.defaultValue,e};for(;s=this.nestingRegexp.exec(e);){let a=[];n={...o},n=n.replace&&"string"!=typeof n.replace?n.replace:n,n.applyPostProcessor=!1,delete n.defaultValue;let c=!1;if(-1!==s[0].indexOf(this.formatSeparator)&&!/{.*}/.test(s[1])){const e=s[1].split(this.formatSeparator).map((e=>e.trim()));s[1]=e.shift(),a=e,c=!0}if(i=t(r.call(this,s[1].trim(),n),n),i&&s[0]===e&&"string"!=typeof i)return i;"string"!=typeof i&&(i=l(i)),i||(this.logger.warn(`missed to resolve ${s[1]} for nesting 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Intl.ListFormat(e,{...t});return e=>s.format(e)}))},this.init(e)}init(e){const t=(arguments.length>1&&void 0!==arguments[1]?arguments[1]:{interpolation:{}}).interpolation;this.formatSeparator=t.formatSeparator?t.formatSeparator:t.formatSeparator||","}add(e,t){this.formats[e.toLowerCase().trim()]=t}addCached(e,t){this.formats[e.toLowerCase().trim()]=V(t)}format(e,t,s){let i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:{};const n=t.split(this.formatSeparator);if(n.length>1&&n[0].indexOf("(")>1&&n[0].indexOf(")")<0&&n.find((e=>e.indexOf(")")>-1))){const e=n.findIndex((e=>e.indexOf(")")>-1));n[0]=[n[0],...n.splice(1,e)].join(this.formatSeparator)}return n.reduce(((e,t)=>{const{formatName:n,formatOptions:o}=(e=>{let t=e.toLowerCase().trim();const s={};if(e.indexOf("(")>-1){const i=e.split("(");t=i[0].toLowerCase().trim();const 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0!==arguments[3]?arguments[3]:{};super(),this.backend=e,this.store=t,this.services=s,this.languageUtils=s.languageUtils,this.options=i,this.logger=o.create("backendConnector"),this.waitingReads=[],this.maxParallelReads=i.maxParallelReads||10,this.readingCalls=0,this.maxRetries=i.maxRetries>=0?i.maxRetries:5,this.retryTimeout=i.retryTimeout>=1?i.retryTimeout:350,this.state={},this.queue=[],this.backend&&this.backend.init&&this.backend.init(s,i.backend,i)}queueLoad(e,t,s,i){const n={},o={},r={},a={};return e.forEach((e=>{let i=!0;t.forEach((t=>{const r=`${e}|${t}`;!s.reload&&this.store.hasResourceBundle(e,t)?this.state[r]=2:this.state[r]<0||(1===this.state[r]?void 0===o[r]&&(o[r]=!0):(this.state[r]=1,i=!1,void 0===o[r]&&(o[r]=!0),void 0===n[r]&&(n[r]=!0),void 0===a[t]&&(a[t]=!0)))})),i||(r[e]=!0)})),(Object.keys(n).length||Object.keys(o).length)&&this.queue.push({pending:o,pendingCount:Object.keys(o).length,loaded:{},errors:[],callback:i}),{toLoad:Object.keys(n),pending:Object.keys(o),toLoadLanguages:Object.keys(r),toLoadNamespaces:Object.keys(a)}}loaded(e,t,s){const i=e.split("|"),n=i[0],o=i[1];t&&this.emit("failedLoading",n,o,t),!t&&s&&this.store.addResourceBundle(n,o,s,void 0,void 0,{skipCopy:!0}),this.state[e]=t?-1:2,t&&s&&(this.state[e]=0);const r={};this.queue.forEach((s=>{((e,t,s,i)=>{const{obj:n,k:o}=p(e,t,Object);n[o]=n[o]||[],n[o].push(s)})(s.loaded,[n],o),((e,t)=>{void 0!==e.pending[t]&&(delete e.pending[t],e.pendingCount--)})(s,e),t&&s.errors.push(t),0!==s.pendingCount||s.done||(Object.keys(s.loaded).forEach((e=>{r[e]||(r[e]={});const t=s.loaded[e];t.length&&t.forEach((t=>{void 0===r[e][t]&&(r[e][t]=!0)}))})),s.done=!0,s.errors.length?s.callback(s.errors):s.callback())})),this.emit("loaded",r),this.queue=this.queue.filter((e=>!e.done))}read(e,t,s){let i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,n=arguments.length>4&&void 0!==arguments[4]?arguments[4]:this.retryTimeout,o=arguments.length>5?arguments[5]:void 0;if(!e.length)return o(null,{});if(this.readingCalls>=this.maxParallelReads)return void this.waitingReads.push({lng:e,ns:t,fcName:s,tried:i,wait:n,callback:o});this.readingCalls++;const r=(r,a)=>{if(this.readingCalls--,this.waitingReads.length>0){const e=this.waitingReads.shift();this.read(e.lng,e.ns,e.fcName,e.tried,e.wait,e.callback)}r&&a&&i<this.maxRetries?setTimeout((()=>{this.read.call(this,e,t,s,i+1,2*n,o)}),n):o(r,a)},a=this.backend[s].bind(this.backend);if(2!==a.length)return a(e,t,r);try{const s=a(e,t);s&&"function"==typeof s.then?s.then((e=>r(null,e))).catch(r):r(null,s)}catch(e){r(e)}}prepareLoading(e,t){let s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{},i=arguments.length>3?arguments[3]:void 0;if(!this.backend)return this.logger.warn("No backend was added via i18next.use. Will not load resources."),i&&i();"string"==typeof e&&(e=this.languageUtils.toResolveHierarchy(e)),"string"==typeof t&&(t=[t]);const n=this.queueLoad(e,t,s,i);if(!n.toLoad.length)return n.pending.length||i(),null;n.toLoad.forEach((e=>{this.loadOne(e)}))}load(e,t,s){this.prepareLoading(e,t,{},s)}reload(e,t,s){this.prepareLoading(e,t,{reload:!0},s)}loadOne(e){let t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"";const s=e.split("|"),i=s[0],n=s[1];this.read(i,n,"read",void 0,void 0,((s,o)=>{s&&this.logger.warn(`${t}loading namespace ${n} for language ${i} failed`,s),!s&&o&&this.logger.log(`${t}loaded namespace ${n} for language ${i}`,o),this.loaded(e,s,o)}))}saveMissing(e,t,s,i,n){let o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:{},r=arguments.length>6&&void 0!==arguments[6]?arguments[6]:()=>{};if(this.services.utils&&this.services.utils.hasLoadedNamespace&&!this.services.utils.hasLoadedNamespace(t))this.logger.warn(`did not save key "${s}" as the namespace "${t}" was not yet loaded`,"This means something IS WRONG in your setup. You access the t function before i18next.init / i18next.loadNamespace / i18next.changeLanguage was done. Wait for the callback or Promise to resolve before accessing it!!!");else if(null!=s&&""!==s){if(this.backend&&this.backend.create){const a={...o,isUpdate:n},l=this.backend.create.bind(this.backend);if(l.length<6)try{let n;n=5===l.length?l(e,t,s,i,a):l(e,t,s,i),n&&"function"==typeof n.then?n.then((e=>r(null,e))).catch(r):r(null,n)}catch(e){r(e)}else l(e,t,s,i,r,a)}e&&e[0]&&this.store.addResource(e[0],t,s,i)}}}const H=()=>({debug:!1,initImmediate:!0,ns:["translation"],defaultNS:["translation"],fallbackLng:["dev"],fallbackNS:!1,supportedLngs:!1,nonExplicitSupportedLngs:!1,load:"all",preload:!1,simplifyPluralSuffix:!0,keySeparator:".",nsSeparator:":",pluralSeparator:"_",contextSeparator:"_",partialBundledLanguages:!1,saveMissing:!1,updateMissing:!1,saveMissingTo:"fallback",saveMissingPlurals:!0,missingKeyHandler:!1,missingInterpolationHandler:!1,postProcess:!1,postProcessPassResolved:!1,returnNull:!1,returnEmptyString:!0,returnObjects:!1,joinArrays:!1,returnedObjectHandler:!1,parseMissingKeyHandler:!1,appendNamespaceToMissingKey:!1,appendNamespaceToCIMode:!1,overloadTranslationOptionHandler:e=>{let t={};if("object"==typeof e[1]&&(t=e[1]),"string"==typeof e[1]&&(t.defaultValue=e[1]),"string"==typeof e[2]&&(t.tDescription=e[2]),"object"==typeof e[2]||"object"==typeof e[3]){const s=e[3]||e[2];Object.keys(s).forEach((e=>{t[e]=s[e]}))}return t},interpolation:{escapeValue:!0,format:e=>e,prefix:"{{",suffix:"}}",formatSeparator:",",unescapePrefix:"-",nestingPrefix:"$t(",nestingSuffix:")",nestingOptionsSeparator:",",maxReplaces:1e3,skipOnVariables:!0}}),K=e=>("string"==typeof e.ns&&(e.ns=[e.ns]),"string"==typeof e.fallbackLng&&(e.fallbackLng=[e.fallbackLng]),"string"==typeof e.fallbackNS&&(e.fallbackNS=[e.fallbackNS]),e.supportedLngs&&e.supportedLngs.indexOf("cimode")<0&&(e.supportedLngs=e.supportedLngs.concat(["cimode"])),e),J=()=>{};class z extends r{constructor(){let e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},t=arguments.length>1?arguments[1]:void 0;var s;if(super(),this.options=K(e),this.services={},this.logger=o,this.modules={external:[]},s=this,Object.getOwnPropertyNames(Object.getPrototypeOf(s)).forEach((e=>{"function"==typeof s[e]&&(s[e]=s[e].bind(s))})),t&&!this.isInitialized&&!e.isClone){if(!this.options.initImmediate)return this.init(e,t),this;setTimeout((()=>{this.init(e,t)}),0)}}init(){var e=this;let t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},s=arguments.length>1?arguments[1]:void 0;this.isInitializing=!0,"function"==typeof t&&(s=t,t={}),!t.defaultNS&&!1!==t.defaultNS&&t.ns&&("string"==typeof t.ns?t.defaultNS=t.ns:t.ns.indexOf("translation")<0&&(t.defaultNS=t.ns[0]));const i=H();this.options={...i,...this.options,...K(t)},"v1"!==this.options.compatibilityAPI&&(this.options.interpolation={...i.interpolation,...this.options.interpolation}),void 0!==t.keySeparator&&(this.options.userDefinedKeySeparator=t.keySeparator),void 0!==t.nsSeparator&&(this.options.userDefinedNsSeparator=t.nsSeparator);const n=e=>e?"function"==typeof e?new e:e:null;if(!this.options.isClone){let t;this.modules.logger?o.init(n(this.modules.logger),this.options):o.init(null,this.options),this.modules.formatter?t=this.modules.formatter:"undefined"!=typeof Intl&&(t=U);const s=new C(this.options);this.store=new O(this.options.resources,this.options);const r=this.services;r.logger=o,r.resourceStore=this.store,r.languageUtils=s,r.pluralResolver=new I(s,{prepend:this.options.pluralSeparator,compatibilityJSON:this.options.compatibilityJSON,simplifyPluralSuffix:this.options.simplifyPluralSuffix}),!t||this.options.interpolation.format&&this.options.interpolation.format!==i.interpolation.format||(r.formatter=n(t),r.formatter.init(r,this.options),this.options.interpolation.format=r.formatter.format.bind(r.formatter)),r.interpolator=new F(this.options),r.utils={hasLoadedNamespace:this.hasLoadedNamespace.bind(this)},r.backendConnector=new M(n(this.modules.backend),r.resourceStore,r,this.options),r.backendConnector.on("*",(function(t){for(var s=arguments.length,i=new Array(s>1?s-1:0),n=1;n<s;n++)i[n-1]=arguments[n];e.emit(t,...i)})),this.modules.languageDetector&&(r.languageDetector=n(this.modules.languageDetector),r.languageDetector.init&&r.languageDetector.init(r,this.options.detection,this.options)),this.modules.i18nFormat&&(r.i18nFormat=n(this.modules.i18nFormat),r.i18nFormat.init&&r.i18nFormat.init(this)),this.translator=new P(this.services,this.options),this.translator.on("*",(function(t){for(var s=arguments.length,i=new Array(s>1?s-1:0),n=1;n<s;n++)i[n-1]=arguments[n];e.emit(t,...i)})),this.modules.external.forEach((e=>{e.init&&e.init(this)}))}if(this.format=this.options.interpolation.format,s||(s=J),this.options.fallbackLng&&!this.services.languageDetector&&!this.options.lng){const e=this.services.languageUtils.getFallbackCodes(this.options.fallbackLng);e.length>0&&"dev"!==e[0]&&(this.options.lng=e[0])}this.services.languageDetector||this.options.lng||this.logger.warn("init: no languageDetector is used and no lng is defined");["getResource","hasResourceBundle","getResourceBundle","getDataByLanguage"].forEach((t=>{this[t]=function(){return e.store[t](...arguments)}}));["addResource","addResources","addResourceBundle","removeResourceBundle"].forEach((t=>{this[t]=function(){return e.store[t](...arguments),e}}));const r=a(),l=()=>{const e=(e,t)=>{this.isInitializing=!1,this.isInitialized&&!this.initializedStoreOnce&&this.logger.warn("init: i18next is already initialized. You should call init just once!"),this.isInitialized=!0,this.options.isClone||this.logger.log("initialized",this.options),this.emit("initialized",this.options),r.resolve(t),s(e,t)};if(this.languages&&"v1"!==this.options.compatibilityAPI&&!this.isInitialized)return e(null,this.t.bind(this));this.changeLanguage(this.options.lng,e)};return this.options.resources||!this.options.initImmediate?l():setTimeout(l,0),r}loadResources(e){let t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:J;const s="string"==typeof e?e:this.language;if("function"==typeof e&&(t=e),!this.options.resources||this.options.partialBundledLanguages){if(s&&"cimode"===s.toLowerCase()&&(!this.options.preload||0===this.options.preload.length))return t();const e=[],i=t=>{if(!t)return;if("cimode"===t)return;this.services.languageUtils.toResolveHierarchy(t).forEach((t=>{"cimode"!==t&&e.indexOf(t)<0&&e.push(t)}))};if(s)i(s);else{this.services.languageUtils.getFallbackCodes(this.options.fallbackLng).forEach((e=>i(e)))}this.options.preload&&this.options.preload.forEach((e=>i(e))),this.services.backendConnector.load(e,this.options.ns,(e=>{e||this.resolvedLanguage||!this.language||this.setResolvedLanguage(this.language),t(e)}))}else t(null)}reloadResources(e,t,s){const i=a();return"function"==typeof e&&(s=e,e=void 0),"function"==typeof t&&(s=t,t=void 0),e||(e=this.languages),t||(t=this.options.ns),s||(s=J),this.services.backendConnector.reload(e,t,(e=>{i.resolve(),s(e)})),i}use(e){if(!e)throw new Error("You are passing an undefined module! Please check the object you are passing to i18next.use()");if(!e.type)throw new Error("You are passing a wrong module! Please check the object you are passing to i18next.use()");return"backend"===e.type&&(this.modules.backend=e),("logger"===e.type||e.log&&e.warn&&e.error)&&(this.modules.logger=e),"languageDetector"===e.type&&(this.modules.languageDetector=e),"i18nFormat"===e.type&&(this.modules.i18nFormat=e),"postProcessor"===e.type&&w.addPostProcessor(e),"formatter"===e.type&&(this.modules.formatter=e),"3rdParty"===e.type&&this.modules.external.push(e),this}setResolvedLanguage(e){if(e&&this.languages&&!(["cimode","dev"].indexOf(e)>-1))for(let e=0;e<this.languages.length;e++){const t=this.languages[e];if(!(["cimode","dev"].indexOf(t)>-1)&&this.store.hasLanguageSomeTranslations(t)){this.resolvedLanguage=t;break}}}changeLanguage(e,t){var s=this;this.isLanguageChangingTo=e;const i=a();this.emit("languageChanging",e);const n=e=>{this.language=e,this.languages=this.services.languageUtils.toResolveHierarchy(e),this.resolvedLanguage=void 0,this.setResolvedLanguage(e)},o=(e,o)=>{o?(n(o),this.translator.changeLanguage(o),this.isLanguageChangingTo=void 0,this.emit("languageChanged",o),this.logger.log("languageChanged",o)):this.isLanguageChangingTo=void 0,i.resolve((function(){return s.t(...arguments)})),t&&t(e,(function(){return s.t(...arguments)}))},r=t=>{e||t||!this.services.languageDetector||(t=[]);const s="string"==typeof t?t:this.services.languageUtils.getBestMatchFromCodes(t);s&&(this.language||n(s),this.translator.language||this.translator.changeLanguage(s),this.services.languageDetector&&this.services.languageDetector.cacheUserLanguage&&this.services.languageDetector.cacheUserLanguage(s)),this.loadResources(s,(e=>{o(e,s)}))};return e||!this.services.languageDetector||this.services.languageDetector.async?!e&&this.services.languageDetector&&this.services.languageDetector.async?0===this.services.languageDetector.detect.length?this.services.languageDetector.detect().then(r):this.services.languageDetector.detect(r):r(e):r(this.services.languageDetector.detect()),i}getFixedT(e,t,s){var i=this;const n=function(e,t){let o;if("object"!=typeof t){for(var r=arguments.length,a=new Array(r>2?r-2:0),l=2;l<r;l++)a[l-2]=arguments[l];o=i.options.overloadTranslationOptionHandler([e,t].concat(a))}else o={...t};o.lng=o.lng||n.lng,o.lngs=o.lngs||n.lngs,o.ns=o.ns||n.ns,""!==o.keyPrefix&&(o.keyPrefix=o.keyPrefix||s||n.keyPrefix);const c=i.options.keySeparator||".";let u;return u=o.keyPrefix&&Array.isArray(e)?e.map((e=>`${o.keyPrefix}${c}${e}`)):o.keyPrefix?`${o.keyPrefix}${c}${e}`:e,i.t(u,o)};return"string"==typeof e?n.lng=e:n.lngs=e,n.ns=t,n.keyPrefix=s,n}t(){return this.translator&&this.translator.translate(...arguments)}exists(){return this.translator&&this.translator.exists(...arguments)}setDefaultNamespace(e){this.options.defaultNS=e}hasLoadedNamespace(e){let t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(!this.isInitialized)return this.logger.warn("hasLoadedNamespace: i18next was not initialized",this.languages),!1;if(!this.languages||!this.languages.length)return this.logger.warn("hasLoadedNamespace: i18n.languages were undefined or empty",this.languages),!1;const s=t.lng||this.resolvedLanguage||this.languages[0],i=!!this.options&&this.options.fallbackLng,n=this.languages[this.languages.length-1];if("cimode"===s.toLowerCase())return!0;const o=(e,t)=>{const s=this.services.backendConnector.state[`${e}|${t}`];return-1===s||0===s||2===s};if(t.precheck){const e=t.precheck(this,o);if(void 0!==e)return e}return!!this.hasResourceBundle(s,e)||(!(this.services.backendConnector.backend&&(!this.options.resources||this.options.partialBundledLanguages))||!(!o(s,e)||i&&!o(n,e)))}loadNamespaces(e,t){const s=a();return this.options.ns?("string"==typeof e&&(e=[e]),e.forEach((e=>{this.options.ns.indexOf(e)<0&&this.options.ns.push(e)})),this.loadResources((e=>{s.resolve(),t&&t(e)})),s):(t&&t(),Promise.resolve())}loadLanguages(e,t){const s=a();"string"==typeof e&&(e=[e]);const i=this.options.preload||[],n=e.filter((e=>i.indexOf(e)<0&&this.services.languageUtils.isSupportedCode(e)));return n.length?(this.options.preload=i.concat(n),this.loadResources((e=>{s.resolve(),t&&t(e)})),s):(t&&t(),Promise.resolve())}dir(e){if(e||(e=this.resolvedLanguage||(this.languages&&this.languages.length>0?this.languages[0]:this.language)),!e)return"rtl";const t=this.services&&this.services.languageUtils||new C(H());return["ar","shu","sqr","ssh","xaa","yhd","yud","aao","abh","abv","acm","acq","acw","acx","acy","adf","ads","aeb","aec","afb","ajp","apc","apd","arb","arq","ars","ary","arz","auz","avl","ayh","ayl","ayn","ayp","bbz","pga","he","iw","ps","pbt","pbu","pst","prp","prd","ug","ur","ydd","yds","yih","ji","yi","hbo","men","xmn","fa","jpr","peo","pes","prs","dv","sam","ckb"].indexOf(t.getLanguagePartFromCode(e))>-1||e.toLowerCase().indexOf("-arab")>1?"rtl":"ltr"}static createInstance(){return new z(arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},arguments.length>1?arguments[1]:void 0)}cloneInstance(){let e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:J;const s=e.forkResourceStore;s&&delete e.forkResourceStore;const i={...this.options,...e,isClone:!0},n=new z(i);void 0===e.debug&&void 0===e.prefix||(n.logger=n.logger.clone(e));return["store","services","language"].forEach((e=>{n[e]=this[e]})),n.services={...this.services},n.services.utils={hasLoadedNamespace:n.hasLoadedNamespace.bind(n)},s&&(n.store=new O(this.store.data,i),n.services.resourceStore=n.store),n.translator=new P(n.services,i),n.translator.on("*",(function(e){for(var t=arguments.length,s=new Array(t>1?t-1:0),i=1;i<t;i++)s[i-1]=arguments[i];n.emit(e,...s)})),n.init(i,t),n.translator.options=i,n.translator.backendConnector.services.utils={hasLoadedNamespace:n.hasLoadedNamespace.bind(n)},n}toJSON(){return{options:this.options,store:this.store,language:this.language,languages:this.languages,resolvedLanguage:this.resolvedLanguage}}}const q=z.createInstance();q.createInstance=z.createInstance;q.createInstance,q.dir,q.init,q.loadResources,q.reloadResources,q.use,q.changeLanguage,q.getFixedT,q.t,q.exists,q.setDefaultNamespace,q.hasLoadedNamespace,q.loadNamespaces,q.loadLanguages}},function(e){var 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