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<!DOCTYPE html><html class="default" lang="en"><head><meta charset="utf-8"/><meta http-equiv="x-ua-compatible" content="IE=edge"/><title>throwUnsupported | @nevware21/ts-utils</title><meta name="description" content="Documentation for @nevware21/ts-utils"/><meta name="viewport" content="width=device-width, initial-scale=1"/><link rel="stylesheet" href="../assets/style.css"/><link rel="stylesheet" href="../assets/highlight.css"/><script defer src="../assets/main.js"></script><script async src="../assets/icons.js" id="tsd-icons-script"></script><script async src="../assets/search.js" id="tsd-search-script"></script><script async src="../assets/navigation.js" id="tsd-nav-script"></script></head><body><script>document.documentElement.dataset.theme = localStorage.getItem("tsd-theme") || "os";document.body.style.display="none";setTimeout(() => app?app.showPage():document.body.style.removeProperty("display"),500)</script><header class="tsd-page-toolbar"><div class="tsd-toolbar-contents 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class="tsd-page-title"><ul class="tsd-breadcrumb"><li><a href="../index.html">@nevware21/ts-utils</a></li><li><a href="throwUnsupported.html">throwUnsupported</a></li></ul><h1>Function throwUnsupported</h1></div><section class="tsd-panel"><ul class="tsd-signatures"><li class="tsd-signature tsd-anchor-link"><a id="throwUnsupported" class="tsd-anchor"></a><span class="tsd-kind-call-signature">throw<wbr/>Unsupported</span><span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">message</span><span class="tsd-signature-symbol">?</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">never</span><a href="#throwUnsupported" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></li><li class="tsd-description"><div class="tsd-comment tsd-typography"><p>Throw a custom <code>UnsupportedError</code> Error instance with the given message.</p> </div><div class="tsd-parameters"><h4 class="tsd-parameters-title">Parameters</h4><ul class="tsd-parameter-list"><li><span><code class="tsd-tag">Optional</code><span class="tsd-kind-parameter">message</span>: <span class="tsd-signature-type">string</span></span><div class="tsd-comment tsd-typography"><p>The message to include in the exception</p> </div><div class="tsd-comment tsd-typography"></div></li></ul></div><h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">never</span></h4><div class="tsd-comment tsd-typography"><div class="tsd-tag-Example"><h4 class="tsd-anchor-link"><a id="Example" class="tsd-anchor"></a>Example<a href="#Example" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h4><pre><code class="ts"><span class="hl-7">import</span><span class="hl-1"> { </span><span class="hl-2">throwUnsupported</span><span class="hl-1"> } </span><span class="hl-7">from</span><span class="hl-1"> </span><span class="hl-5">"@nevware21/ts-utils"</span><span class="hl-1">;</span><br/><br/><span class="hl-7">if</span><span class="hl-1"> (!</span><span class="hl-2">window</span><span class="hl-1">) {</span><br/><span class="hl-1"> </span><span class="hl-3">throwUnsupported</span><span class="hl-1">(</span><span class="hl-5">"A window is needed for this operation"</span><span class="hl-1">);</span><br/><span class="hl-1">}</span> </code><button type="button">Copy</button></pre> </div></div><aside class="tsd-sources"><ul><li>Defined in <a href="https://github.com/nevware21/ts-utils/blob/main/lib/src/helpers/customError.ts#L175">lib/src/helpers/customError.ts:175</a></li></ul></aside></li></ul></section></div><div class="col-sidebar"><div class="page-menu"><div class="tsd-navigation settings"><details class="tsd-accordion"><summary class="tsd-accordion-summary"><h3><svg width="20" height="20" viewBox="0 0 24 24" fill="none"><use 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