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+---
+title: DataTransferItem.getAsString()
+slug: Web/API/DataTransferItem/getAsString
+translation_of: Web/API/DataTransferItem/getAsString
+---
+<div>{{APIRef("HTML Drag and Drop API")}}</div>
+
+<p> <strong><code>DataTransferItem.getAsString()</code></strong>  当DataTransferItem对象的kind属性是一个普通Unicode字符串时，该方法会用 DataTransferItem对象的kind属性作为入参来执行传入的回调函数 (i.e. <code>kind</code> is <code>string</code>).</p>
+
+<h2 id="示例">示例</h2>
+
+<pre class="syntaxbox notranslate"><em>dataTransferItem</em>.getAsString(callback);
+</pre>
+
+<h3 id="Parameters">Parameters</h3>
+
+<dl>
+ <dt><code>callback</code></dt>
+ <dd>A callback function that has access to the {{domxref("DataTransferItem","data transfer item's")}} string data. See {{anch("Callback")}} below for details.</dd>
+</dl>
+
+<h3 id="Return_value">Return value</h3>
+
+<p>{{jsxref("undefined")}}</p>
+
+<h2 id="Callback">Callback</h2>
+
+<p>The callback parameter is a callback function which accepts one parameter:</p>
+
+<dl>
+ <dt>{{domxref("DOMString")}}</dt>
+ <dd>The drag data item's string data.</dd>
+</dl>
+
+<p>The callback return value is <code>undefined</code>.</p>
+
+<h2 id="Example">Example</h2>
+
+<p>This example shows the use of the <code>getAsString()</code> method as an <em>inline function</em> in a {{event("drop")}} event handler.</p>
+
+<pre class="brush: js notranslate">function drop_handler(ev) {
+ console.log("Drop");
+ ev.preventDefault();
+ var data = ev.dataTransfer.items;
+ for (var i = 0; i &lt; data.length; i += 1) {
+   if ((data[i].kind == 'string') &amp;&amp;
+       (data[i].type.match('^text/plain'))) {
+     // This item is the target node
+     data[i].getAsString(function (s){
+       ev.target.appendChild(document.getElementById(s));
+     });
+   } else if ((data[i].kind == 'string') &amp;&amp;
+              (data[i].type.match('^text/html'))) {
+     // Drag data item is HTML
+     console.log("... Drop: HTML");
+   } else if ((data[i].kind == 'string') &amp;&amp;
+              (data[i].type.match('^text/uri-list'))) {
+     // Drag data item is URI
+     console.log("... Drop: URI");
+   } else if ((data[i].kind == 'file') &amp;&amp;
+              (data[i].type.match('^image/'))) {
+     // Drag data item is an image file
+     var f = data[i].getAsFile();
+     console.log("... Drop: File ");
+   }
+ }
+}
+</pre>
+
+<h2 id="Specifications">Specifications</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('HTML WHATWG', 'interaction.html#dom-datatransferitem-getasstring','getAsString()')}}</td>
+   <td>{{Spec2('HTML WHATWG')}}</td>
+   <td>Initial definition.</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('HTML5.1', 'editing.html#dom-datatransferitem-getasstring','getAsString()')}}</td>
+   <td>{{Spec2('HTML5.1')}}</td>
+   <td>Snapshot fo HTML WHATWG document</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_compatibility">Browser compatibility</h2>
+
+
+
+<p>{{Compat("api.DataTransferItem.getAsString")}}</p>
+
+<h2 id="See_also">See also</h2>
+
+<ul>
+ <li>{{domxref("DataTransfer.getData()")}}</li>
+</ul>