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Diffstat (limited to 'files/zh-cn/web/javascript/reference/global_objects/map/entries/index.html')
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diff --git a/files/zh-cn/web/javascript/reference/global_objects/map/entries/index.html b/files/zh-cn/web/javascript/reference/global_objects/map/entries/index.html new file mode 100644 index 0000000000..db24574461 --- /dev/null +++ b/files/zh-cn/web/javascript/reference/global_objects/map/entries/index.html @@ -0,0 +1,79 @@ +--- +title: Map.prototype.entries() +slug: Web/JavaScript/Reference/Global_Objects/Map/entries +tags: + - ECMAScript 2015 + - Iterator + - JavaScript + - Map + - Method + - Prototype +translation_of: Web/JavaScript/Reference/Global_Objects/Map/entries +original_slug: Web/JavaScript/Reference/Global_Objects/Map/entries +browser-compat: javascript.builtins.Map.entries +--- +<div>{{JSRef}}</div> + +<p><code><strong>entries()</strong></code> 方法返回一个新的包含 <code>[key, value]</code> 对的 <code><strong>Iterator</strong></code> 对象,返回的迭代器的迭代顺序与 <code>Map</code> 对象的插入顺序相同。</p> + +<p>{{EmbedInteractiveExample("pages/js/map-prototype-entries.html")}}</p> + +<h2 id="语法">语法</h2> + +<pre><code><var>myMap</var>.entries()</code> +</pre> + +<h3 id="返回值">返回值</h3> + +<p>一个新的 {{jsxref("Map")}} 迭代器对象.</p> + +<h2 id="示例">示例</h2> + +<h3 id="entries()的使用"><code>entries()</code>的使用</h3> + +<pre class="brush:js">var myMap = new Map(); +myMap.set("0", "foo"); +myMap.set(1, "bar"); +myMap.set({}, "baz"); + +var mapIter = myMap.entries(); + +console.log(mapIter.next().value); // ["0", "foo"] +console.log(mapIter.next().value); // [1, "bar"] +console.log(mapIter.next().value); // [Object, "baz"] +</pre> + +<h2 id="规范">规范</h2> + +<table> + <thead> + <tr> + <th scope="col">Specification</th> + <th scope="col">Status</th> + <th scope="col">Comment</th> + </tr> + </thead> + <tbody> + <tr> + <td>{{SpecName('ESDraft', '#sec-map.prototype.entries', 'Map.prototype.entries')}}</td> + <td>{{Spec2('ESDraft')}}</td> + <td></td> + </tr> + <tr> + <td>{{SpecName('ES2015', '#sec-map.prototype.entries', 'Map.prototype.entries')}}</td> + <td>{{Spec2('ES2015')}}</td> + <td>Initial definition.</td> + </tr> + </tbody> +</table> + +<h2 id="浏览器兼容性">浏览器兼容性</h2> + +<p>{{Compat("javascript.builtins.Map.entries")}}</p> + +<h2 id="相关链接">相关链接</h2> + +<ul> + <li>{{jsxref("Map.prototype.keys()")}}</li> + <li>{{jsxref("Map.prototype.values()")}}</li> +</ul> |
