files/ja/web/api/htmlelement/accesskeylabel/index.html


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---
title: accessKeyLabel
slug: Web/API/HTMLElement/accessKeyLabel
translation_of: Web/API/HTMLElement/accessKeyLabel
---
<div>{{ APIRef("HTML DOM") }}</div>

<p><strong><code>HTMLElement.accessKeyLabel</code></strong> は読み取り専用プロパティで、 {{jsxref("String")}} で要素に割り当てられたアクセスキーを (あれば) 返します。それ以外の場合は空文字列を返します。</p>

<h2 id="Syntax" name="Syntax">構文</h2>

<pre class="syntaxbox notranslate"><var>label</var> = <var>element</var>.accessKeyLabel
</pre>

<h2 id="Example" name="Example">例</h2>

<h3 id="JavaScript">JavaScript</h3>

<pre class="brush: js notranslate">var node = document.getElementById('btn1');
if (node.accessKeyLabel) {
  node.title += ' [' + node.accessKeyLabel + ']';
} else {
  node.title += ' [' + node.accessKey + ']';
}

node.onclick = function () {
  var p = document.createElement('p');
  p.textContent = 'Clicked!';
  node.parentNode.appendChild(p);
};
</pre>

<h3 id="HTML">HTML</h3>

<pre class="brush: html notranslate">&lt;button accesskey="h" title="Caption" id="btn1"&gt;Hover me&lt;/button&gt;
</pre>

<h3 id="Result" name="Result">結果</h3>

<p>{{ EmbedLiveSample('Example') }}</p>

<h2 id="Specification" name="Specification">仕様書</h2>

<table class="standard-table">
 <thead>
  <tr>
   <th scope="col">仕様書</th>
   <th scope="col">状態</th>
   <th scope="col">備考</th>
  </tr>
 </thead>
 <tbody>
  <tr>
   <td>{{SpecName('HTML WHATWG', "interaction.html#dom-accesskeylabel", "HTMLElement.accessKeyLabel")}}</td>
   <td>{{Spec2('HTML WHATWG')}}</td>
   <td>初回定義から変更なし。</td>
  </tr>
  <tr>
   <td>{{SpecName('HTML5.1')}}</td>
   <td>{{Spec2('HTML5.1')}}</td>
   <td>削除。 <a href="https://github.com/w3c/html/pull/144">pull w3c/html#144</a>, <a href="https://github.com/w3c/html/issues/99">issue w3c/html#99</a>, <a href="https://discourse.wicg.io/t/accesskeylabel-author-accessible-info-about-shortcuts/1392/3">WICG discussion</a>.</td>
  </tr>
  <tr>
   <td>{{SpecName('HTML5 W3C', "editing.html#dom-accesskeylabel", "HTMLElement.accessKeyLabel")}}</td>
   <td>{{Spec2('HTML5 W3C')}}</td>
   <td>{{SpecName('HTML WHATWG')}} のスナップショット、初回定義</td>
  </tr>
 </tbody>
</table>

<h2 id="Browser_compatibility" name="Browser_compatibility">ブラウザーの互換性</h2>

<div>
<p>{{Compat("api.HTMLElement.accessKeyLabel")}}</p>
</div>

<h2 id="See_also" name="See_also">関連情報</h2>

<ul>
 <li>{{domxref("element.accessKey")}}</li>
 <li><a href="/ja/docs/Web/HTML/Global_attributes/accesskey">accesskey</a> グローバル属性</li>
</ul>