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---
title: GlobalEventHandlers.onselectionchange
slug: Web/API/GlobalEventHandlers/onselectionchange
translation_of: Web/API/GlobalEventHandlers/onselectionchange
---
<div>{{ApiRef('DOM')}}{{SeeCompatTable}}</div>
<p><code><strong>GlobalEventHandlers.onselectionchange</strong></code> 属性表示当一个 {{event("selectstart")}} 事件被触发，比如在页面上选中文字变化时，会执行绑定的事件处理器</p>
<h2 id="Syntax">Syntax</h2>
<pre class="syntaxbox"><em>obj</em>.onselectionchange = <em>function</em>;
</pre>
<h2 id="Example">Example</h2>
<pre class="brush: js">var selection;
document.onselectionchange = function() {
console.log('New selection made');
selection = document.getSelection();
};</pre>
<p>完整例子请参阅<a href="https://github.com/chrisdavidmills/selection-api-examples/#key-quote-generator-see-it-running-live">Key quote generator</a> demo.</p>
<h2 id="Specifications">Specifications</h2>
<table class="spectable standard-table">
<tbody>
<tr>
<th scope="col">Specification</th>
<th scope="col">Status</th>
<th scope="col">Comment</th>
</tr>
<tr>
<td>{{SpecName('Selection API','#dom-globaleventhandlers-onselectionchange','GlobalEventHandlers.onselectionchange')}}</td>
<td>{{Spec2('Selection API')}}</td>
<td>Initial definition.</td>
</tr>
</tbody>
</table>
<h2 id="Browser_compatibility">Browser compatibility</h2>
{{Compat("api.GlobalEventHandlers.onselectionchange")}}
<h2 id="See_also">See also</h2>
<ul>
<li>{{event("selectionchange")}}</li>
<li>{{domxref("GlobalEventHandlers.onselectstart")}}</li>
</ul>
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