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author | MDN <actions@users.noreply.github.com> | 2021-06-23 00:34:06 +0000 |
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committer | MDN <actions@users.noreply.github.com> | 2021-06-23 00:34:06 +0000 |
commit | 52ccdf1f0a1cee3f0659ac78e81c79dae152399b (patch) | |
tree | b17424899ff0c32cee6820a6921edd9999da6ea1 /files/zh-cn/web/javascript/reference/global_objects/map/keys/index.html | |
parent | d62c8afe56395e9e793dab0f629b2a1694449c82 (diff) | |
download | translated-content-52ccdf1f0a1cee3f0659ac78e81c79dae152399b.tar.gz translated-content-52ccdf1f0a1cee3f0659ac78e81c79dae152399b.tar.bz2 translated-content-52ccdf1f0a1cee3f0659ac78e81c79dae152399b.zip |
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diff --git a/files/zh-cn/web/javascript/reference/global_objects/map/keys/index.html b/files/zh-cn/web/javascript/reference/global_objects/map/keys/index.html deleted file mode 100644 index 5d27dffc82..0000000000 --- a/files/zh-cn/web/javascript/reference/global_objects/map/keys/index.html +++ /dev/null @@ -1,79 +0,0 @@ ---- -title: Map.prototype.keys() -slug: Web/JavaScript/Reference/Global_Objects/Map/keys -tags: - - ECMAScript6 - - Iterator - - JavaScript - - Map - - Method - - Prototype - - 方法 -translation_of: Web/JavaScript/Reference/Global_Objects/Map/keys ---- -<div>{{JSRef}}</div> - -<p><code><strong>keys()</strong></code> 返回一个引用的 <code><strong>Iterator</strong></code> 对象。它包含按照顺序插入 <code>Map</code> 对象中每个元素的key值。</p> - -<div>{{EmbedInteractiveExample("pages/js/map-prototype-keys.html")}}</div> - - - -<h2 id="语法">语法</h2> - -<pre class="syntaxbox notranslate"><code><em>myMap</em>.keys()</code></pre> - -<h3 id="返回值">返回值</h3> - -<p>一个存在引用关系的 {{jsxref("Map")}} iterator 对象.</p> - -<h2 id="例子">例子</h2> - -<h3 id="使用_keys">使用 <code>keys()</code></h3> - -<pre class="brush:js notranslate">var myMap = new Map(); -myMap.set("0", "foo"); -myMap.set(1, "bar"); -myMap.set({}, "baz"); - -var mapIter = myMap.keys(); - -console.log(mapIter.next().value); // "0" -console.log(mapIter.next().value); // 1 -console.log(mapIter.next().value); // Object -</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">备注</th> - </tr> - <tr> - <td>{{SpecName('ES2015', '#sec-map.prototype.keys', 'Map.prototype.keys')}}</td> - <td>{{Spec2('ES2015')}}</td> - <td>Initial definition.</td> - </tr> - <tr> - <td>{{SpecName('ESDraft', '#sec-map.prototype.keys', 'Map.prototype.keys')}}</td> - <td>{{Spec2('ESDraft')}}</td> - <td></td> - </tr> - </tbody> -</table> - -<h2 id="浏览器兼容性">浏览器兼容性</h2> - - - -<p>{{Compat("javascript.builtins.Map.keys")}}</p> - -<h2 id="参见">参见</h2> - -<ul> - <li>{{jsxref("Map.prototype.entries()")}}</li> - <li>{{jsxref("Map.prototype.values()")}}</li> -</ul> |