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authorPeter Bengtsson <mail@peterbe.com>2020-12-08 14:40:17 -0500
committerPeter Bengtsson <mail@peterbe.com>2020-12-08 14:40:17 -0500
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+---
+title: InputEvent.data
+slug: Web/API/InputEvent/data
+tags:
+ - API
+ - DOM Events
+ - InputEvent
+ - data
+translation_of: Web/API/InputEvent/data
+---
+<p>{{SeeCompatTable}}{{APIRef("DOM Events")}}</p>
+
+<div class="blockIndicator note">
+<p>请注意,<strong><code>data</code></strong> 属性在使用键盘输入时会返回输入的字符内容,但在粘贴、拖动时可能会返回 <code>null</code>,这取决于浏览器。浏览器也可能把一些数据保存在 {{domxref("InputEvent.dataTransfer")}},而不是该 <strong><code>data</code></strong> 属性中。</p>
+</div>
+
+<p>{{domxref("InputEvent")}} 接口中的只读属性 <strong><code>data</code></strong> 返回含有插入字符数据的 {{domxref("DOMString")}}。如果更改未插入文本(例如删除字符时),则其可能为空字符串。</p>
+
+<h2 id="语法">语法</h2>
+
+<pre class="syntaxbox">var <em>string</em> = <em>inputEvent</em>.data;</pre>
+
+<h3 id="返回值">返回值</h3>
+
+<p>一个 {{domxref("DOMString")}}。</p>
+
+<h2 id="示例">示例</h2>
+
+<p>在下面的简单示例中,我们在 <a href="https://wiki.developer.mozilla.org/en-US/docs/Web/API/HTMLElement/input_event">input</a> 事件上设置了一个事件监听器,以便在对 {{htmlelement("input")}} 元素的内容进行任何更改时(通过键入或粘贴),通过 <strong><code>InputEvent.data</code></strong> 属性检索添加的文本,并在 <code>&lt;input&gt;</code> 下面的段落中报告。</p>
+
+<pre class="brush: html">&lt;p&gt;Some text to copy and paste.&lt;/p&gt;
+
+&lt;input type="text"&gt;
+
+&lt;p class="result"&gt;&lt;/p&gt;</pre>
+
+<pre class="brush: js">var editable = document.querySelector('input')
+var result = document.querySelector('.result');
+
+editable.addEventListener('input', (e) =&gt; {
+ result.textContent = "Inputted text: " + e.data;
+});</pre>
+
+<p>{{EmbedLiveSample('Examples')}}</p>
+
+<h2 id="规范">规范</h2>
+
+<table class="standard-table">
+ <tbody>
+ <tr>
+ <th scope="col">Specification</th>
+ <th scope="col">Status</th>
+ <th scope="col">Comment</th>
+ </tr>
+ <tr>
+ <td>{{SpecName('InputEvents2','#dfn-data','data')}}</td>
+ <td>{{Spec2('InputEvents2')}}</td>
+ <td>Initial definition.</td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="浏览器兼容性">浏览器兼容性</h2>
+
+<div>
+<div class="hidden">此页上的兼容性表是从结构化数据生成的。如果您想贡献数据,请访问 <a href="https://github.com/mdn/browser-compat-data">https://github.com/mdn/browser-compat-data</a> 并向我们发送一个请求。</div>
+
+<p>{{Compat("api.InputEvent.data")}}</p>
+</div>