uTools-Manuals/docs/javascript/Reference/Global_Objects/Set/values.html

<article id="wikiArticle">
<div></div>
<p> <code><strong>values()</strong></code> 方法返回一个 <code><strong>Iterator</strong></code>  对象，这个对象以插入 Set 对象的顺序包含了原 Set 对象里的每个元素。</p>
<p> <strong><code>keys()</code></strong> 方法是这个方法的别名 (出于与 <a href="Reference/Map" title="此页面仍未被本地化, 期待您的翻译!"><code>Map</code></a> 对象保持相似的原因); 它的行为与 value 方法完全一致，返回 Set 对象的元素。</p>
<h2 id="语法">语法</h2>
<pre><code class="language-javascript"><code><em>mySet</em>.values();<code>
</code></code></code></pre>
<h3 id="返回值">返回值</h3>
<p>将返回一个新生成的可迭代对象，以插入 Set 对象的顺序返回其包含的每个元素的值。</p>
<h2 id="示例">示例</h2>
<h3 id="使用values()"><font face="Open Sans, Arial, sans-serif">使用</font><code>values()</code></h3>
<pre><code class="language-js">var mySet = new Set();
mySet.add("foo");
mySet.add("bar");
mySet.add("baz");

var setIter = mySet.values();

console.log(setIter.next().value); // "foo"
console.log(setIter.next().value); // "bar"
console.log(setIter.next().value); // "baz"</code></pre>
<h2 id="规范">规范</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col">规范</th>
<th scope="col">状态</th>
<th scope="col">注释</th>
</tr>
<tr>
<td><a class="external" href="https://www.ecma-international.org/ecma-262/6.0/#sec-set.prototype.values" hreflang="en" lang="en" rel="noopener">ECMAScript 2015 (6th Edition, ECMA-262)<br/><small lang="zh-CN">Set.prototype.values</small></a></td>
<td><span class="spec-Standard">Standard</span></td>
<td>Initial definition.</td>
</tr>
<tr>
<td><a class="external" href="https://tc39.github.io/ecma262/#sec-set.prototype.values" hreflang="en" lang="en" rel="noopener">ECMAScript Latest Draft (ECMA-262)<br/><small lang="zh-CN">Set.prototype.values</small></a></td>
<td><span class="spec-Draft">Draft</span></td>
<td> </td>
</tr>
</tbody>
</table>
<h2 id="浏览器兼容性">浏览器兼容性</h2>
<p></p><div class="blockIndicator warning"><strong><a class="external" href="https://github.com/mdn/browser-compat-data" rel="noopener">We're converting our compatibility data into a machine-readable JSON format</a></strong>.
            This compatibility table still uses the old format,
            because we haven't yet converted the data it contains.
            <strong><a class="new" href="/zh-CN/docs/MDN/Contribute/Structures/Compatibility_tables" rel="nofollow">Find out how you can help!</a></strong></div>
<div class="htab">
<a id="AutoCompatibilityTable" name="AutoCompatibilityTable"></a>
<ul>
<li class="selected"><a>Desktop</a></li>
<li><a>Mobile</a></li>
</ul>
</div><p></p>
<div id="compat-desktop">
<table class="compat-table">
<tbody>
<tr>
<th>Feature</th>
<th>Chrome</th>
<th>Firefox (Gecko)</th>
<th>Internet Explorer</th>
<th>Opera</th>
<th>Safari</th>
</tr>
<tr>
<td>Basic support</td>
<td>38</td>
<td><a href="/en-US/Firefox/Releases/24" title="Released on 2013-09-17.">24</a> (24)</td>
<td><span style="color: #f00;">未实现</span></td>
<td>25</td>
<td>7.1</td>
</tr>
</tbody>
</table>
</div>
<div id="compat-mobile">
<table class="compat-table">
<tbody>
<tr>
<th>Feature</th>
<th>Android</th>
<th>Chrome for Android</th>
<th>Firefox Mobile (Gecko)</th>
<th>IE Mobile</th>
<th>Opera Mobile</th>
<th>Safari Mobile</th>
</tr>
<tr>
<td>Basic support</td>
<td><span style="color: #f00;">未实现</span></td>
<td>38</td>
<td>24.0 (24)</td>
<td><span style="color: #f00;">未实现</span></td>
<td><span style="color: #f00;">未实现</span></td>
<td>8</td>
</tr>
</tbody>
</table>
</div>
<h2 id="参见">参见</h2>
<ul>
<li><a href="Reference/Global_Objects/Set/entries" title="entries() 方法返回一个新的迭代器对象 ，这个对象的元素是类似 [value, value] 形式的数组，value 是集合对象中的每个元素，迭代器对象元素的顺序即集合对象中元素插入的顺序。由于集合对象不像 Map 对象那样拥有 key，然而，为了与 Map 对象的 API 形式保持一致，故使得每一个 entry 的 key 和 value 都拥有相同的值，因而最终返回一个 [value, value] 形式的数组。"><code>Set.prototype.entries()</code></a></li>
</ul>
</article>