---
title: Array.prototype.entries()
slug: Web/JavaScript/Reference/Global_Objects/Array/entries
translation_of: Web/JavaScript/Reference/Global_Objects/Array/entries
---
<div>{{JSRef}}</div>

<p>Phương thức <strong><code>entries()</code></strong> trả về một mảng đối tượng <strong>Array Iterator</strong> chứa cặp key/value cho mỗi chỉ mục trong mảng.</p>

<div>{{EmbedInteractiveExample("pages/js/array-entries.html")}}</div>



<h2 id="Syntax">Syntax</h2>

<pre class="syntaxbox notranslate"><var>array</var>.entries()</pre>

<h3 id="Return_value">Return value</h3>

<p>Một {{jsxref("Array")}} đối tượng iterator.</p>

<h2 id="Examples">Examples</h2>

<h3 id="Iterating_with_index_and_element">Iterating with index and element</h3>

<pre class="brush:js notranslate">const a = ['a', 'b', 'c'];

for (const [index, element] of a.entries())
  console.log(index, element);

// 0 'a'
// 1 'b'
// 2 'c'
</pre>

<h3 id="Using_a_for…of_loop">Using a <a href="/en-US/docs/Web/JavaScript/Reference/Statements/for...of">for…of</a> loop</h3>

<pre class="brush:js notranslate">var a = ['a', 'b', 'c'];
var iterator = a.entries();

for (let e of iterator) {
  console.log(e);
}
// [0, 'a']
// [1, 'b']
// [2, 'c']
</pre>

<h2 id="Specifications">Specifications</h2>

<table class="standard-table">
 <thead>
  <tr>
   <th scope="col">Specification</th>
  </tr>
 </thead>
 <tbody>
  <tr>
   <td>{{SpecName('ESDraft', '#sec-array.prototype.entries', 'Array.prototype.entries')}}</td>
  </tr>
 </tbody>
</table>

<h2 id="Browser_compatibility">Browser compatibility</h2>

<div>


<p>{{Compat("javascript.builtins.Array.entries")}}</p>
</div>

<h2 id="See_also">See also</h2>

<ul>
 <li>{{jsxref("Array.prototype.keys()")}}</li>
 <li>{{jsxref("Array.prototype.values()")}}</li>
 <li>{{jsxref("Array.prototype.forEach()")}}</li>
 <li>{{jsxref("Array.prototype.every()")}}</li>
 <li>{{jsxref("Array.prototype.some()")}}</li>
 <li><a href="/en-US/docs/Web/JavaScript/Reference/Statements/for...of">for...of</a></li>
 <li><a href="/en-US/docs/Web/JavaScript/Reference/Iteration_protocols">Iteration protocols</a></li>
</ul>