---
title: Screen.width
slug: Web/API/Screen/width
translation_of: Web/API/Screen/width
---
<div>
<div>{{APIRef("CSSOM View")}}</div>
</div>

<p>Zwraca szerokość ekranu.</p>

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

<pre class="syntaxbox"><var>lWidth</var> = window.screen.width
</pre>

<h2 id="Example" name="Example">Przykład</h2>

<pre class="brush:js">// crude way to check that the screen is at least 1024x768
if (window.screen.width &gt;= 1024 &amp;&amp; window.screen.height &gt;= 768) {
  // resolution is 1024x768 or above
}
</pre>

<h2 id="Notes" name="Notes">Notes</h2>

<p>Note that not all of the width given by this property may be available to the window itself. When other widgets occupy space that cannot be used by the <code>window</code> object, there is a difference in <code>window.screen.width</code> and <code>window.screen.availWidth</code>. See also {{domxref("window.screen.height")}}.</p>

<p>Internet Explorer will take into account the zoom setting when reporting the screen width. It will only return the real width of the screen if the zoom is set to 100%.</p>

<h2 id="Specification" name="Specification">Specyfikacja</h2>

<table class="standard-table">
 <thead>
  <tr>
   <th scope="col">Specyfikacja</th>
   <th scope="col">Status</th>
   <th scope="col">Komentarz</th>
  </tr>
 </thead>
 <tbody>
  <tr>
   <td>{{ SpecName('CSSOM View', '#dom-screen-width', 'Screen.width') }}</td>
   <td>{{ Spec2('CSSOM View') }}</td>
   <td> </td>
  </tr>
 </tbody>
</table>

<h2 id="Kompatybilność_przeglądarek">Kompatybilność przeglądarek</h2>

<p>{{CompatibilityTable}}</p>

<div id="compat-desktop">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Chrome</th>
   <th>Edge</th>
   <th>Firefox (Gecko)</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari (WebKit)</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>6</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Android</th>
   <th>Android Webview</th>
   <th>Edge</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>Firefox OS</th>
   <th>IE Mobile</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
   <th>Chrome for Android</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>