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+---
+title: Array.isArray()
+slug: Web/JavaScript/Reference/Global_Objects/Array/isArray
+translation_of: Web/JavaScript/Reference/Global_Objects/Array/isArray
+---
+<div>{{JSRef}}</div>
+
+<p>De <code><strong>Array.isArray()</strong></code> bepaalt of de gegeven waarde een {{jsxref("Array")}} is. </p>
+
+<h2 id="Syntax">Syntax</h2>
+
+<pre class="syntaxbox"><code>Array.isArray(<var>obj</var>)</code></pre>
+
+<h3 id="Parameters">Parameters</h3>
+
+<dl>
+ <dt><code>obj</code></dt>
+ <dd>Het te onderzoeken object.</dd>
+</dl>
+
+<h2 id="Beschrijving">Beschrijving</h2>
+
+<p>Indien het object een {{jsxref("Array")}} is, dan is <code>true</code> het resultaat, anders wordt dit <code>false</code>. </p>
+
+<p>Bekijk het artikel <a href="http://web.mit.edu/jwalden/www/isArray.html">“Determining with absolute accuracy whether or not a JavaScript object is an array”</a> voor nadere details.</p>
+
+<h2 id="Voorbeelden">Voorbeelden</h2>
+
+<pre class="brush: js">// alle van de volgende call resulteren in true
+Array.isArray([]);
+Array.isArray([1]);
+Array.isArray(new Array());
+// Weinig bekend: Array.prototype is zelf een array:
+Array.isArray(Array.prototype);
+
+// alle van de volgende calls resulteren in false
+Array.isArray();
+Array.isArray({});
+Array.isArray(null);
+Array.isArray(undefined);
+Array.isArray(17);
+Array.isArray('Array');
+Array.isArray(true);
+Array.isArray(false);
+Array.isArray({ __proto__: Array.prototype });
+</pre>
+
+<h2 id="Polyfill">Polyfill</h2>
+
+<p>De volgende code zal de methode <code>Array.isArray()</code> aanmaken indien deze niet van huis uit werd meegegeven:</p>
+
+<pre class="brush: js">if (!Array.isArray) {
+  Array.isArray = function(arg) {
+    return Object.prototype.toString.call(arg) === '[object Array]';
+  };
+}
+</pre>
+
+<h2 id="Specificaties">Specificaties</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">Specificaties</th>
+   <th scope="col">Status</th>
+   <th scope="col">Commentaar</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('ES5.1', '#sec-15.4.3.2', 'Array.isArray')}}</td>
+   <td>{{Spec2('ES5.1')}}</td>
+   <td>Initiele definitie. Geimplementeerd in JavaScript 1.8.5.</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('ES6', '#sec-array.isarray', 'Array.isArray')}}</td>
+   <td>{{Spec2('ES6')}}</td>
+   <td> </td>
+  </tr>
+  <tr>
+   <td>{{SpecName('ESDraft', '#sec-array.isarray', 'Array.isArray')}}</td>
+   <td>{{Spec2('ESDraft')}}</td>
+   <td> </td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_compatibiliteit">Browser compatibiliteit</h2>
+
+<div>{{CompatibilityTable}}</div>
+
+<div id="compat-desktop">
+<table class="compat-table">
+ <tbody>
+  <tr>
+   <th>Eigenschap</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>{{CompatChrome("5")}}</td>
+   <td>{{CompatGeckoDesktop("2.0")}}</td>
+   <td>{{CompatIE("9")}}</td>
+   <td>{{CompatOpera("10.5")}}</td>
+   <td>{{CompatSafari("5")}}</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+  <tr>
+   <th>Eigenschap</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>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatGeckoMobile("2.0")}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<h2 id="Zie_ook">Zie ook</h2>
+
+<ul>
+ <li>{{jsxref("Array")}}</li>
+</ul>