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<?xml version="1.0" encoding="utf-8" ?>
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<h1 class="title">std/jsheaders</h1>
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<div class="theme-select-wrapper">
<label for="theme-select">Theme:&nbsp;</label>
<select id="theme-select" onchange="setTheme(this.value)">
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<summary><a class="reference reference-toplevel" href="#7" id="57">Types</a></summary>
<ul class="simple simple-toc-section">
<li><a class="reference" href="#Headers" title="Headers = ref object of JsRoot">Headers</a></li>
</ul>
</details>
</li>
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<details open>
<summary><a class="reference reference-toplevel" href="#12" id="62">Procs</a></summary>
<ul class="simple simple-toc-section">
<ul class="simple nested-toc-section">$
<li><a class="reference" href="#%24%2CHeaders" title="`$`(self: Headers): string">`$`(self: Headers): string</a></li>
</ul>
<ul class="simple nested-toc-section">[]
<li><a class="reference" href="#%5B%5D%2CHeaders%2Ccstring" title="`[]`(self: Headers; key: cstring): cstring">`[]`(self: Headers; key: cstring): cstring</a></li>
</ul>
<ul class="simple nested-toc-section">[]=
<li><a class="reference" href="#%5B%5D%3D%2CHeaders%2Ccstring%2Ccstring" title="`[]=`(self: Headers; key: cstring; value: cstring)">`[]=`(self: Headers; key: cstring; value: cstring)</a></li>
</ul>
<ul class="simple nested-toc-section">add
<li><a class="reference" href="#add%2CHeaders%2Ccstring%2Ccstring" title="add(self: Headers; key: cstring; value: cstring)">add(self: Headers; key: cstring; value: cstring)</a></li>
</ul>
<ul class="simple nested-toc-section">clear
<li><a class="reference" href="#clear%2CHeaders" title="clear(self: Headers)">clear(self: Headers)</a></li>
</ul>
<ul class="simple nested-toc-section">delete
<li><a class="reference" href="#delete%2CHeaders%2Ccstring" title="delete(self: Headers; key: cstring)">delete(self: Headers; key: cstring)</a></li>
</ul>
<ul class="simple nested-toc-section">entries
<li><a class="reference" href="#entries%2CHeaders" title="entries(self: Headers): seq[tuple[key, value: cstring]]">entries(self: Headers): seq[tuple[key, value: cstring]]</a></li>
</ul>
<ul class="simple nested-toc-section">hasKey
<li><a class="reference" href="#hasKey%2CHeaders%2Ccstring" title="hasKey(self: Headers; key: cstring): bool">hasKey(self: Headers; key: cstring): bool</a></li>
</ul>
<ul class="simple nested-toc-section">keys
<li><a class="reference" href="#keys%2CHeaders" title="keys(self: Headers): seq[cstring]">keys(self: Headers): seq[cstring]</a></li>
</ul>
<ul class="simple nested-toc-section">len
<li><a class="reference" href="#len%2CHeaders" title="len(self: Headers): int">len(self: Headers): int</a></li>
</ul>
<ul class="simple nested-toc-section">newHeaders
<li><a class="reference" href="#newHeaders" title="newHeaders(): Headers">newHeaders(): Headers</a></li>
</ul>
<ul class="simple nested-toc-section">toCstring
<li><a class="reference" href="#toCstring%2CHeaders" title="toCstring(self: Headers): cstring">toCstring(self: Headers): cstring</a></li>
</ul>
<ul class="simple nested-toc-section">values
<li><a class="reference" href="#values%2CHeaders" title="values(self: Headers): seq[cstring]">values(self: Headers): seq[cstring]</a></li>
</ul>
</ul>
</details>
</li>
</ul>
</div>
<div class="nine columns" id="content">
<a href="https://github.com/nim-lang/Nim/tree/devel/lib/std/jsheaders.nim#L1" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/std/jsheaders.nim#L1" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
<div id="tocRoot"></div>
<p class="module-desc"><ul class="simple"><li>HTTP Headers for the JavaScript target: <a class="reference external" href="https://developer.mozilla.org/en-US/docs/Web/API/Headers">https://developer.mozilla.org/en-US/docs/Web/API/Headers</a></li>
</ul>
<p><strong class="examples_text">Example: cmd: -r:off</strong></p>
<pre class="listing"><span class="Keyword">import</span> <span class="Identifier">std</span><span class="Operator">/</span><span class="Identifier">jsheaders</span>
<span class="Keyword">block</span><span class="Punctuation">:</span>
<span class="Keyword">let</span> <span class="Identifier">header</span><span class="Punctuation">:</span> <span class="Identifier">Headers</span> <span class="Operator">=</span> <span class="Identifier">newHeaders</span><span class="Punctuation">(</span><span class="Punctuation">)</span>
<span class="Identifier">header</span><span class="Operator">.</span><span class="Identifier">add</span><span class="Punctuation">(</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;value&quot;</span><span class="Punctuation">)</span>
<span class="Identifier">assert</span> <span class="Identifier">header</span><span class="Operator">.</span><span class="Identifier">hasKey</span><span class="Punctuation">(</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">)</span>
<span class="Identifier">assert</span> <span class="Identifier">header</span><span class="Operator">.</span><span class="Identifier">keys</span><span class="Punctuation">(</span><span class="Punctuation">)</span> <span class="Operator">==</span> <span class="Operator">@</span><span class="Punctuation">[</span><span class="StringLit">&quot;key&quot;</span><span class="Operator">.</span><span class="Identifier">cstring</span><span class="Punctuation">]</span>
<span class="Identifier">assert</span> <span class="Identifier">header</span><span class="Operator">.</span><span class="Identifier">values</span><span class="Punctuation">(</span><span class="Punctuation">)</span> <span class="Operator">==</span> <span class="Operator">@</span><span class="Punctuation">[</span><span class="StringLit">&quot;value&quot;</span><span class="Operator">.</span><span class="Identifier">cstring</span><span class="Punctuation">]</span>
<span class="Identifier">assert</span> <span class="Identifier">header</span><span class="Punctuation">[</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">]</span> <span class="Operator">==</span> <span class="StringLit">&quot;value&quot;</span><span class="Operator">.</span><span class="Identifier">cstring</span>
<span class="Identifier">header</span><span class="Punctuation">[</span><span class="StringLit">&quot;other&quot;</span><span class="Punctuation">]</span> <span class="Operator">=</span> <span class="StringLit">&quot;another&quot;</span><span class="Operator">.</span><span class="Identifier">cstring</span>
<span class="Identifier">assert</span> <span class="Identifier">header</span><span class="Punctuation">[</span><span class="StringLit">&quot;other&quot;</span><span class="Punctuation">]</span> <span class="Operator">==</span> <span class="StringLit">&quot;another&quot;</span><span class="Operator">.</span><span class="Identifier">cstring</span>
<span class="Identifier">assert</span> <span class="Identifier">header</span><span class="Operator">.</span><span class="Identifier">entries</span><span class="Punctuation">(</span><span class="Punctuation">)</span> <span class="Operator">==</span> <span class="Operator">@</span><span class="Punctuation">[</span><span class="Punctuation">(</span><span class="StringLit">&quot;key&quot;</span><span class="Operator">.</span><span class="Identifier">cstring</span><span class="Punctuation">,</span> <span class="StringLit">&quot;value&quot;</span><span class="Operator">.</span><span class="Identifier">cstring</span><span class="Punctuation">)</span><span class="Punctuation">,</span> <span class="Punctuation">(</span><span class="StringLit">&quot;other&quot;</span><span class="Operator">.</span><span class="Identifier">cstring</span><span class="Punctuation">,</span> <span class="StringLit">&quot;another&quot;</span><span class="Operator">.</span><span class="Identifier">cstring</span><span class="Punctuation">)</span><span class="Punctuation">]</span>
<span class="Identifier">assert</span> <span class="Identifier">header</span><span class="Operator">.</span><span class="Identifier">toCstring</span><span class="Punctuation">(</span><span class="Punctuation">)</span> <span class="Operator">==</span> <span class="LongStringLit">&quot;&quot;&quot;[[&quot;key&quot;,&quot;value&quot;],[&quot;other&quot;,&quot;another&quot;]]&quot;&quot;&quot;</span><span class="Operator">.</span><span class="Identifier">cstring</span>
<span class="Identifier">header</span><span class="Operator">.</span><span class="Identifier">delete</span><span class="Punctuation">(</span><span class="StringLit">&quot;other&quot;</span><span class="Punctuation">)</span>
<span class="Identifier">assert</span> <span class="Identifier">header</span><span class="Operator">.</span><span class="Identifier">entries</span><span class="Punctuation">(</span><span class="Punctuation">)</span> <span class="Operator">==</span> <span class="Operator">@</span><span class="Punctuation">[</span><span class="Punctuation">(</span><span class="StringLit">&quot;key&quot;</span><span class="Operator">.</span><span class="Identifier">cstring</span><span class="Punctuation">,</span> <span class="StringLit">&quot;value&quot;</span><span class="Operator">.</span><span class="Identifier">cstring</span><span class="Punctuation">)</span><span class="Punctuation">]</span>
<span class="Identifier">header</span><span class="Operator">.</span><span class="Identifier">clear</span><span class="Punctuation">(</span><span class="Punctuation">)</span>
<span class="Identifier">assert</span> <span class="Identifier">header</span><span class="Operator">.</span><span class="Identifier">entries</span><span class="Punctuation">(</span><span class="Punctuation">)</span> <span class="Operator">==</span> <span class="Operator">@</span><span class="Punctuation">[</span><span class="Punctuation">]</span>
<span class="Identifier">assert</span> <span class="Identifier">header</span><span class="Operator">.</span><span class="Identifier">len</span> <span class="Operator">==</span> <span class="DecNumber">0</span>
<span class="Keyword">block</span><span class="Punctuation">:</span>
<span class="Keyword">let</span> <span class="Identifier">header</span><span class="Punctuation">:</span> <span class="Identifier">Headers</span> <span class="Operator">=</span> <span class="Identifier">newHeaders</span><span class="Punctuation">(</span><span class="Punctuation">)</span>
<span class="Identifier">header</span><span class="Operator">.</span><span class="Identifier">add</span><span class="Punctuation">(</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;a&quot;</span><span class="Punctuation">)</span>
<span class="Identifier">header</span><span class="Operator">.</span><span class="Identifier">add</span><span class="Punctuation">(</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;b&quot;</span><span class="Punctuation">)</span> <span class="Comment">## Duplicated.</span>
<span class="Identifier">header</span><span class="Operator">.</span><span class="Identifier">add</span><span class="Punctuation">(</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;c&quot;</span><span class="Punctuation">)</span> <span class="Comment">## Duplicated.</span>
<span class="Identifier">assert</span> <span class="Identifier">header</span><span class="Punctuation">[</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">]</span> <span class="Operator">==</span> <span class="StringLit">&quot;a, b, c&quot;</span><span class="Operator">.</span><span class="Identifier">cstring</span>
<span class="Identifier">header</span><span class="Punctuation">[</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">]</span> <span class="Operator">=</span> <span class="StringLit">&quot;value&quot;</span><span class="Operator">.</span><span class="Identifier">cstring</span>
<span class="Identifier">assert</span> <span class="Identifier">header</span><span class="Punctuation">[</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">]</span> <span class="Operator">==</span> <span class="StringLit">&quot;value&quot;</span><span class="Operator">.</span><span class="Identifier">cstring</span>
<span class="Keyword">block</span><span class="Punctuation">:</span>
<span class="Keyword">let</span> <span class="Identifier">header</span><span class="Punctuation">:</span> <span class="Identifier">Headers</span> <span class="Operator">=</span> <span class="Identifier">newHeaders</span><span class="Punctuation">(</span><span class="Punctuation">)</span>
<span class="Identifier">header</span><span class="Punctuation">[</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">]</span> <span class="Operator">=</span> <span class="StringLit">&quot;a&quot;</span>
<span class="Identifier">header</span><span class="Punctuation">[</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">]</span> <span class="Operator">=</span> <span class="StringLit">&quot;b&quot;</span> <span class="Comment">## Overwrites.</span>
<span class="Identifier">assert</span> <span class="Identifier">header</span><span class="Punctuation">[</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">]</span> <span class="Operator">==</span> <span class="StringLit">&quot;b&quot;</span><span class="Operator">.</span><span class="Identifier">cstring</span></pre></p>
<div class="section" id="7">
<h1><a class="toc-backref" href="#7">Types</a></h1>
<dl class="item">
<div id="Headers">
<dt><pre><a href="jsheaders.html#Headers"><span class="Identifier">Headers</span></a> <span class="Other">=</span> <span class="Keyword">ref</span> <span class="Keyword">object</span> <span class="Keyword">of</span> <a href="system.html#JsRoot"><span class="Identifier">JsRoot</span></a></pre></dt>
<dd>
HTTP Headers API.
<a href="https://github.com/nim-lang/Nim/tree/devel/lib/std/jsheaders.nim#L5" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/std/jsheaders.nim#L5" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
</dd>
</div>
</dl>
</div>
<div class="section" id="12">
<h1><a class="toc-backref" href="#12">Procs</a></h1>
<dl class="item">
<div id="$-procs-all">
<div id="$,Headers">
<dt><pre><span class="Keyword">func</span> <a href="#%24%2CHeaders"><span class="Identifier">`$`</span></a><span class="Other">(</span><span class="Identifier">self</span><span class="Other">:</span> <a href="jsheaders.html#Headers"><span class="Identifier">Headers</span></a><span class="Other">)</span><span class="Other">:</span> <a href="system.html#string"><span class="Identifier">string</span></a> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<a href="https://github.com/nim-lang/Nim/tree/devel/lib/std/jsheaders.nim#L46" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/std/jsheaders.nim#L46" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
</dd>
</div>
</div>
<div id="[]-procs-all">
<div id="[],Headers,cstring">
<dt><pre><span class="Keyword">func</span> <a href="#%5B%5D%2CHeaders%2Ccstring"><span class="Identifier">`[]`</span></a><span class="Other">(</span><span class="Identifier">self</span><span class="Other">:</span> <a href="jsheaders.html#Headers"><span class="Identifier">Headers</span></a><span class="Other">;</span> <span class="Identifier">key</span><span class="Other">:</span> <a href="system.html#cstring"><span class="Identifier">cstring</span></a><span class="Other">)</span><span class="Other">:</span> <a href="system.html#cstring"><span class="Identifier">cstring</span></a> {.<span class="Identifier">importjs</span><span class="Other">:</span> <span class="StringLit">&quot;#.get(#)&quot;</span><span class="Other">,</span>
<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Get <em>all</em> items with <tt class="docutils literal"><span class="pre"><span class="Identifier">key</span></span></tt> from the headers, including duplicated values. <a class="reference external" href="https://developer.mozilla.org/en-US/docs/Web/API/Headers/get">https://developer.mozilla.org/en-US/docs/Web/API/Headers/get</a>
<a href="https://github.com/nim-lang/Nim/tree/devel/lib/std/jsheaders.nim#L31" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/std/jsheaders.nim#L31" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
</dd>
</div>
</div>
<div id="[]=-procs-all">
<div id="[]=,Headers,cstring,cstring">
<dt><pre><span class="Keyword">func</span> <a href="#%5B%5D%3D%2CHeaders%2Ccstring%2Ccstring"><span class="Identifier">`[]=`</span></a><span class="Other">(</span><span class="Identifier">self</span><span class="Other">:</span> <a href="jsheaders.html#Headers"><span class="Identifier">Headers</span></a><span class="Other">;</span> <span class="Identifier">key</span><span class="Other">:</span> <a href="system.html#cstring"><span class="Identifier">cstring</span></a><span class="Other">;</span> <span class="Identifier">value</span><span class="Other">:</span> <a href="system.html#cstring"><span class="Identifier">cstring</span></a><span class="Other">)</span> {.
<span class="Identifier">importjs</span><span class="Other">:</span> <span class="StringLit">&quot;#.set(#, #)&quot;</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Do <em>not</em> allow duplicated keys, overwrites duplicated keys. <a class="reference external" href="https://developer.mozilla.org/en-US/docs/Web/API/Headers/set">https://developer.mozilla.org/en-US/docs/Web/API/Headers/set</a>
<a href="https://github.com/nim-lang/Nim/tree/devel/lib/std/jsheaders.nim#L35" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/std/jsheaders.nim#L35" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
</dd>
</div>
</div>
<div id="add-procs-all">
<div id="add,Headers,cstring,cstring">
<dt><pre><span class="Keyword">func</span> <a href="#add%2CHeaders%2Ccstring%2Ccstring"><span class="Identifier">add</span></a><span class="Other">(</span><span class="Identifier">self</span><span class="Other">:</span> <a href="jsheaders.html#Headers"><span class="Identifier">Headers</span></a><span class="Other">;</span> <span class="Identifier">key</span><span class="Other">:</span> <a href="system.html#cstring"><span class="Identifier">cstring</span></a><span class="Other">;</span> <span class="Identifier">value</span><span class="Other">:</span> <a href="system.html#cstring"><span class="Identifier">cstring</span></a><span class="Other">)</span> {.
<span class="Identifier">importjs</span><span class="Other">:</span> <span class="StringLit">&quot;#.append(#, #)&quot;</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Allows duplicated keys. <a class="reference external" href="https://developer.mozilla.org/en-US/docs/Web/API/Headers/append">https://developer.mozilla.org/en-US/docs/Web/API/Headers/append</a>
<a href="https://github.com/nim-lang/Nim/tree/devel/lib/std/jsheaders.nim#L10" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/std/jsheaders.nim#L10" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
</dd>
</div>
</div>
<div id="clear-procs-all">
<div id="clear,Headers">
<dt><pre><span class="Keyword">func</span> <a href="#clear%2CHeaders"><span class="Identifier">clear</span></a><span class="Other">(</span><span class="Identifier">self</span><span class="Other">:</span> <a href="jsheaders.html#Headers"><span class="Identifier">Headers</span></a><span class="Other">)</span> {.<span class="Identifier">importjs</span><span class="Other">:</span> <span class="StringLit">&quot;(() =&gt; { const header = #; Array.from(header.keys()).forEach((key) =&gt; header.delete(key)) })()&quot;</span><span class="Other">,</span>
<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Convenience func to delete all items from <tt class="docutils literal"><span class="pre"><span class="Identifier">Headers</span></span></tt>.
<a href="https://github.com/nim-lang/Nim/tree/devel/lib/std/jsheaders.nim#L39" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/std/jsheaders.nim#L39" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
</dd>
</div>
</div>
<div id="delete-procs-all">
<div id="delete,Headers,cstring">
<dt><pre><span class="Keyword">func</span> <a href="#delete%2CHeaders%2Ccstring"><span class="Identifier">delete</span></a><span class="Other">(</span><span class="Identifier">self</span><span class="Other">:</span> <a href="jsheaders.html#Headers"><span class="Identifier">Headers</span></a><span class="Other">;</span> <span class="Identifier">key</span><span class="Other">:</span> <a href="system.html#cstring"><span class="Identifier">cstring</span></a><span class="Other">)</span> {.<span class="Identifier">importjs</span><span class="Other">:</span> <span class="StringLit">&quot;#.$1(#)&quot;</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span>
<span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<a class="reference external" href="https://developer.mozilla.org/en-US/docs/Web/API/Headers/delete">https://developer.mozilla.org/en-US/docs/Web/API/Headers/delete</a><div class="admonition admonition-warning"><span class="admonition-warning-text"><b>Warning:</b></span>
Delete <em>all</em> items with <tt class="docutils literal"><span class="pre"><span class="Identifier">key</span></span></tt> from the headers, including duplicated keys.</div>
<a href="https://github.com/nim-lang/Nim/tree/devel/lib/std/jsheaders.nim#L14" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/std/jsheaders.nim#L14" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
</dd>
</div>
</div>
<div id="entries-procs-all">
<div id="entries,Headers">
<dt><pre><span class="Keyword">func</span> <a href="#entries%2CHeaders"><span class="Identifier">entries</span></a><span class="Other">(</span><span class="Identifier">self</span><span class="Other">:</span> <a href="jsheaders.html#Headers"><span class="Identifier">Headers</span></a><span class="Other">)</span><span class="Other">:</span> <a href="system.html#seq"><span class="Identifier">seq</span></a><span class="Other">[</span><span class="Keyword">tuple</span><span class="Other">[</span><span class="Identifier">key</span><span class="Other">,</span> <span class="Identifier">value</span><span class="Other">:</span> <a href="system.html#cstring"><span class="Identifier">cstring</span></a><span class="Other">]</span><span class="Other">]</span> {.
<span class="Identifier">importjs</span><span class="Other">:</span> <span class="StringLit">&quot;Array.from(#.$1())&quot;</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<a class="reference external" href="https://developer.mozilla.org/en-US/docs/Web/API/Headers/entries">https://developer.mozilla.org/en-US/docs/Web/API/Headers/entries</a>
<a href="https://github.com/nim-lang/Nim/tree/devel/lib/std/jsheaders.nim#L28" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/std/jsheaders.nim#L28" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
</dd>
</div>
</div>
<div id="hasKey-procs-all">
<div id="hasKey,Headers,cstring">
<dt><pre><span class="Keyword">func</span> <a href="#hasKey%2CHeaders%2Ccstring"><span class="Identifier">hasKey</span></a><span class="Other">(</span><span class="Identifier">self</span><span class="Other">:</span> <a href="jsheaders.html#Headers"><span class="Identifier">Headers</span></a><span class="Other">;</span> <span class="Identifier">key</span><span class="Other">:</span> <a href="system.html#cstring"><span class="Identifier">cstring</span></a><span class="Other">)</span><span class="Other">:</span> <a href="system.html#bool"><span class="Identifier">bool</span></a> {.<span class="Identifier">importjs</span><span class="Other">:</span> <span class="StringLit">&quot;#.has(#)&quot;</span><span class="Other">,</span>
<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<a class="reference external" href="https://developer.mozilla.org/en-US/docs/Web/API/Headers/has">https://developer.mozilla.org/en-US/docs/Web/API/Headers/has</a>
<a href="https://github.com/nim-lang/Nim/tree/devel/lib/std/jsheaders.nim#L19" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/std/jsheaders.nim#L19" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
</dd>
</div>
</div>
<div id="keys-procs-all">
<div id="keys,Headers">
<dt><pre><span class="Keyword">func</span> <a href="#keys%2CHeaders"><span class="Identifier">keys</span></a><span class="Other">(</span><span class="Identifier">self</span><span class="Other">:</span> <a href="jsheaders.html#Headers"><span class="Identifier">Headers</span></a><span class="Other">)</span><span class="Other">:</span> <a href="system.html#seq"><span class="Identifier">seq</span></a><span class="Other">[</span><a href="system.html#cstring"><span class="Identifier">cstring</span></a><span class="Other">]</span> {.<span class="Identifier">importjs</span><span class="Other">:</span> <span class="StringLit">&quot;Array.from(#.$1())&quot;</span><span class="Other">,</span>
<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<a class="reference external" href="https://developer.mozilla.org/en-US/docs/Web/API/Headers/keys">https://developer.mozilla.org/en-US/docs/Web/API/Headers/keys</a>
<a href="https://github.com/nim-lang/Nim/tree/devel/lib/std/jsheaders.nim#L22" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/std/jsheaders.nim#L22" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
</dd>
</div>
</div>
<div id="len-procs-all">
<div id="len,Headers">
<dt><pre><span class="Keyword">func</span> <a href="#len%2CHeaders"><span class="Identifier">len</span></a><span class="Other">(</span><span class="Identifier">self</span><span class="Other">:</span> <a href="jsheaders.html#Headers"><span class="Identifier">Headers</span></a><span class="Other">)</span><span class="Other">:</span> <a href="system.html#int"><span class="Identifier">int</span></a> {.<span class="Identifier">importjs</span><span class="Other">:</span> <span class="StringLit">&quot;Array.from(#.entries()).length&quot;</span><span class="Other">,</span>
<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<a href="https://github.com/nim-lang/Nim/tree/devel/lib/std/jsheaders.nim#L48" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/std/jsheaders.nim#L48" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
</dd>
</div>
</div>
<div id="newHeaders-procs-all">
<div id="newHeaders">
<dt><pre><span class="Keyword">func</span> <a href="#newHeaders"><span class="Identifier">newHeaders</span></a><span class="Other">(</span><span class="Other">)</span><span class="Other">:</span> <a href="jsheaders.html#Headers"><span class="Identifier">Headers</span></a> {.<span class="Identifier">importjs</span><span class="Other">:</span> <span class="StringLit">&quot;new Headers()&quot;</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span>
<span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<a class="reference external" href="https://developer.mozilla.org/en-US/docs/Web/API/Headers">https://developer.mozilla.org/en-US/docs/Web/API/Headers</a>
<a href="https://github.com/nim-lang/Nim/tree/devel/lib/std/jsheaders.nim#L7" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/std/jsheaders.nim#L7" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
</dd>
</div>
</div>
<div id="toCstring-procs-all">
<div id="toCstring,Headers">
<dt><pre><span class="Keyword">func</span> <a href="#toCstring%2CHeaders"><span class="Identifier">toCstring</span></a><span class="Other">(</span><span class="Identifier">self</span><span class="Other">:</span> <a href="jsheaders.html#Headers"><span class="Identifier">Headers</span></a><span class="Other">)</span><span class="Other">:</span> <a href="system.html#cstring"><span class="Identifier">cstring</span></a> {.
<span class="Identifier">importjs</span><span class="Other">:</span> <span class="StringLit">&quot;JSON.stringify(Array.from(#.entries()))&quot;</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span>
<span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Returns a <tt class="docutils literal"><span class="pre"><span class="Identifier">cstring</span></span></tt> representation of <tt class="docutils literal"><span class="pre"><span class="Identifier">Headers</span></span></tt>.
<a href="https://github.com/nim-lang/Nim/tree/devel/lib/std/jsheaders.nim#L43" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/std/jsheaders.nim#L43" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
</dd>
</div>
</div>
<div id="values-procs-all">
<div id="values,Headers">
<dt><pre><span class="Keyword">func</span> <a href="#values%2CHeaders"><span class="Identifier">values</span></a><span class="Other">(</span><span class="Identifier">self</span><span class="Other">:</span> <a href="jsheaders.html#Headers"><span class="Identifier">Headers</span></a><span class="Other">)</span><span class="Other">:</span> <a href="system.html#seq"><span class="Identifier">seq</span></a><span class="Other">[</span><a href="system.html#cstring"><span class="Identifier">cstring</span></a><span class="Other">]</span> {.<span class="Identifier">importjs</span><span class="Other">:</span> <span class="StringLit">&quot;Array.from(#.$1())&quot;</span><span class="Other">,</span>
<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<a class="reference external" href="https://developer.mozilla.org/en-US/docs/Web/API/Headers/values">https://developer.mozilla.org/en-US/docs/Web/API/Headers/values</a>
<a href="https://github.com/nim-lang/Nim/tree/devel/lib/std/jsheaders.nim#L25" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/std/jsheaders.nim#L25" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
</dd>
</div>
</div>
</dl>
</div>
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