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+---
+title: 'Array.prototype[@@iterator]()'
+slug: Web/JavaScript/Reference/Global_Objects/Array/@@iterator
+tags:
+ - Array
+ - ECMAScript 2015
+ - Iterator
+ - JavaScript
+ - Method
+ - Prototype
+ - Reference
+translation_of: Web/JavaScript/Reference/Global_Objects/Array/@@iterator
+---
+<div>{{JSRef}}</div>
+
+<p><code><strong>@@iterator</strong></code> 屬性的初始值與 {{jsxref("Array.prototype.values()", "values()")}} 屬性的初始值為相同的的函式物件。</p>
+
+<h2 id="語法">語法</h2>
+
+<pre class="syntaxbox"><code><var>arr</var>[Symbol.iterator]()</code></pre>
+
+<h3 id="回傳值">回傳值</h3>
+
+<p>陣列的<strong>迭代器(iterator)</strong>函式,預設與 {{jsxref("Array.prototype.values()", "values()")}} 函式相同。</p>
+
+<h2 id="範例">範例</h2>
+
+<h3 id="使用_for...of_迴圈進行迭代">使用 <code>for...of</code> 迴圈進行迭代</h3>
+
+<pre class="brush: js">var arr = ['w', 'y', 'k', 'o', 'p'];
+var eArr = arr[Symbol.iterator]();
+// your browser must support for..of loop
+// and let-scoped variables in for loops
+for (let letter of eArr) {
+ console.log(letter);
+}
+</pre>
+
+<h3 id="另一種迭代方式">另一種迭代方式</h3>
+
+<pre class="brush: js">var arr = ['w', 'y', 'k', 'o', 'p'];
+var eArr = arr[Symbol.iterator]();
+console.log(eArr.next().value); // w
+console.log(eArr.next().value); // y
+console.log(eArr.next().value); // k
+console.log(eArr.next().value); // o
+console.log(eArr.next().value); // p
+</pre>
+
+<h2 id="規範">規範</h2>
+
+<table class="standard-table">
+ <tbody>
+ <tr>
+ <th scope="col">Specification</th>
+ <th scope="col">Status</th>
+ <th scope="col">Comment</th>
+ </tr>
+ <tr>
+ <td>{{SpecName('ES2015', '#sec-array.prototype-@@iterator', 'Array.prototype[@@iterator]()')}}</td>
+ <td>{{Spec2('ES2015')}}</td>
+ <td>Initial definition.</td>
+ </tr>
+ <tr>
+ <td>{{SpecName('ESDraft', '#sec-array.prototype-@@iterator', 'Array.prototype[@@iterator]()')}}</td>
+ <td>{{Spec2('ESDraft')}}</td>
+ <td> </td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="瀏覽器相容性">瀏覽器相容性</h2>
+
+<div>
+
+
+<p>{{Compat("javascript.builtins.Array.@@iterator")}}</p>
+</div>
+
+<h2 id="參見">參見</h2>
+
+<ul>
+ <li>{{jsxref("Array.prototype.keys()")}}</li>
+ <li>{{jsxref("Array.prototype.entries()")}}</li>
+ <li>{{jsxref("Array.prototype.forEach()")}}</li>
+ <li>{{jsxref("Array.prototype.every()")}}</li>
+ <li>{{jsxref("Array.prototype.some()")}}</li>
+ <li>{{jsxref("Array.prototype.values()")}}</li>
+</ul>