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+---
+title: Array.prototype.includes()
+slug: Web/JavaScript/Reference/Global_Objects/Array/includes
+tags:
+ - ג'אווה סקריפט
+ - מערך
+ - פוליפיל
+ - פרוטוטייפ
+translation_of: Web/JavaScript/Reference/Global_Objects/Array/includes
+---
+<div dir="rtl">{{JSRef}}</div>
+
+<div dir="rtl">שיטת <code><strong>includes()</strong></code> קובעת אם מערך מכיל אלמנט מסויים, מחזיר true או false בהתאם.</div>
+
+<div dir="rtl"> </div>
+
+<h2 dir="rtl" id="תחביר">תחביר</h2>
+
+<pre class="syntaxbox">var <var>boolean</var> = <var>array</var>.includes(<var>searchElement</var>[, <var>fromIndex</var>])</pre>
+
+<h3 dir="rtl" id="פרמטרים">פרמטרים</h3>
+
+<dl>
+ <dt dir="rtl"><code>searchElement</code></dt>
+ <dd dir="rtl">האלמנט אותו מחפשים</dd>
+ <dt dir="rtl"><code>fromIndex</code></dt>
+ <dd dir="rtl">אופציונלי. המיקום במערך בו להתחיל את החיפוש אחר searchElement. ערך שלילי יתחיל את החיפוש מהערך האחרון (array.length) + fromIndex בסדר עולה. ברירת מחדל 0.</dd>
+</dl>
+
+<h3 dir="rtl" id="ערך_מוחזר_(Return)">ערך מוחזר (Return)</h3>
+
+<p dir="rtl">{{jsxref("Boolean")}}.</p>
+
+<h2 dir="rtl" id="דוגמאות">דוגמאות</h2>
+
+<pre class="brush: js">[1, 2, 3].includes(2); // true
+[1, 2, 3].includes(4); // false
+[1, 2, 3].includes(3, 3); // false
+[1, 2, 3].includes(3, -1); // true
+[1, 2, NaN].includes(NaN); // true
+</pre>
+
+<h2 dir="rtl" id="פוליפיל_-_Polyfill">פוליפיל - Polyfill</h2>
+
+<pre class="brush: js">if (!Array.prototype.includes) {
+ Array.prototype.includes = function(searchElement /*, fromIndex*/) {
+ 'use strict';
+ if (this == null) {
+ throw new TypeError('Array.prototype.includes called on null or undefined');
+ }
+
+ var O = Object(this);
+ var len = parseInt(O.length, 10) || 0;
+ if (len === 0) {
+ return false;
+ }
+ var n = parseInt(arguments[1], 10) || 0;
+ var k;
+ if (n &gt;= 0) {
+ k = n;
+ } else {
+ k = len + n;
+ if (k &lt; 0) {k = 0;}
+ }
+ var currentElement;
+ while (k &lt; len) {
+ currentElement = O[k];
+ if (searchElement === currentElement ||
+ (searchElement !== searchElement &amp;&amp; currentElement !== currentElement)) { // NaN !== NaN
+ return true;
+ }
+ k++;
+ }
+ return false;
+ };
+}
+</pre>
+
+<h2 dir="rtl" id="מפרט">מפרט</h2>
+
+<table class="standard-table" dir="rtl" style="height: 185px; width: 490px;">
+ <tbody>
+ <tr>
+ <th scope="col"><span style="display: none;"> </span><span style="display: none;"> </span>מפרט</th>
+ <th scope="col">סטטוס</th>
+ <th scope="col">הערה</th>
+ </tr>
+ <tr>
+ <td>{{SpecName('ES7', '#sec-array.prototype.includes', 'Array.prototype.includes')}}</td>
+ <td>{{Spec2('ES7')}}</td>
+ <td>הגדרה ראשונית</td>
+ </tr>
+ <tr>
+ <td>{{SpecName('ESDraft', '#sec-array.prototype.includes', 'Array.prototype.includes')}}</td>
+ <td>{{Spec2('ESDraft')}}</td>
+ <td> </td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 dir="rtl" id="תאימות_דפדפנים">תאימות דפדפנים</h2>
+
+<div>{{CompatibilityTable}}</div>
+
+<div id="compat-desktop">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>מאפיין</th>
+ <th>Chrome</th>
+ <th>Firefox (Gecko)</th>
+ <th>Internet Explorer</th>
+ <th>Edge</th>
+ <th>Opera</th>
+ <th>Safari</th>
+ </tr>
+ <tr>
+ <td>תמיכה בסיסית</td>
+ <td>
+ <p>{{CompatChrome(47)}}</p>
+ </td>
+ <td>43</td>
+ <td>{{CompatNo}}</td>
+ <td>14279+</td>
+ <td>34</td>
+ <td>9</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>מאפיין</th>
+ <th>Android</th>
+ <th>Android Webview</th>
+ <th>Firefox Mobile (Gecko)</th>
+ <th>IE Mobile</th>
+ <th>Opera Mobile</th>
+ <th>Safari Mobile</th>
+ <th>Chrome for Android</th>
+ </tr>
+ <tr>
+ <td>תמיכה בסיסית</td>
+ <td>{{CompatNo}}</td>
+ <td>
+ <p>{{CompatChrome(47)}}</p>
+ </td>
+ <td>43</td>
+ <td>{{CompatNo}}</td>
+ <td>34</td>
+ <td>9</td>
+ <td>
+ <p>{{CompatChrome(47)}}</p>
+ </td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<h2 dir="rtl" id="ראה_עוד">ראה עוד</h2>
+
+<ul dir="rtl">
+ <li>{{jsxref("TypedArray.prototype.includes()")}}</li>
+ <li>{{jsxref("String.prototype.includes()")}}</li>
+ <li>{{jsxref("Array.prototype.indexOf()")}}</li>
+</ul>