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---
title: DeviceOrientationEvent.gamma
slug: Web/API/DeviceOrientationEvent/gamma
translation_of: Web/API/DeviceOrientationEvent/gamma
---
<p>{{ apiref("Device Orientation Events") }}</p>
<p>返回设备旋转时Y轴的值;<font><font>即，多少度，介于之间</font></font><code>-90</code><font><font>和</font></font><code>90</code><font><font>，通过该装置被接通向左或向右。</font><font>见</font></font><a href="https://developer.mozilla.org/en/DOM/Orientation_and_motion_data_explained" title="取向和运动数据解释"><font><font>方向和运动数据解释</font></font></a><font><font>的细节。</font></font></p>
<h2 id="Syntax">Syntax</h2>
<pre class="syntaxbox">var gamma = <em>orientationEvent</em>.gamma;
</pre>
<h2 id="Specifications">Specifications</h2>
<table class="standard-table">
<thead>
<tr>
<th scope="col">Specification</th>
<th scope="col">Status</th>
<th scope="col">Comment</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="https://w3c.github.io/deviceorientation/spec-source-orientation.html" hreflang="en" lang="en" title="“设备方向事件”规范"><font><font>设备方向事件</font></font></a></td>
<td>{Spec2('Device Orientation')}}</td>
<td>Initial specification.</td>
</tr>
</tbody>
</table>
<h2 id="Browser_compatibility">Browser compatibility</h2>
{{Compat("api.DeviceOrientationEvent.gamma")}}
<h2 id="See_also">See also</h2>
<ul>
<li>{{ domxref("DeviceOrientationEvent") }}</li>
<li><a href="/en/Detecting_device_orientation" title="Detecting device orientation">Detecting device orientation</a></li>
<li><a href="/en/DOM/Orientation_and_motion_data_explained" title="Orientation and motion data explained">Orientation and motion data explained</a></li>
<li>{{ domxref("window.ondeviceorientation") }}</li>
<li>{{ event("deviceorientation") }}</li>
</ul>
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