---
title: PushMessageData.json()
slug: Web/API/PushMessageData/json
tags:
  - PushMessageData.json()
translation_of: Web/API/PushMessageData/json
---
<p>{{APIRef("Push API")}}{{SeeCompatTable()}}</p>

<p>{{domxref("PushMessageData")}} 接口的 <code><strong>json()</strong></code>方法将推送消息数据提取为 一个 <a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON">JSON</a> 对象。</p>

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

<pre class="brush: js">let massage_Json = PushEvent.data.json();</pre>

<h3 id="Parameters">Parameters</h3>

<p>None.</p>

<h3 id="Returns">Returns</h3>

<p>A <a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON">JSON</a> object.</p>

<h2 id="Examples">Examples</h2>

<pre class="brush: js">self.addEventListener('push', function(event) {
  var jsonObj = event.data.json();

  // do something with your JSON
});</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('Push API', '#widl-PushMessageData-json-JSON', 'json()')}}</td>
   <td>{{Spec2('Push API')}}</td>
   <td>Initial definition.</td>
  </tr>
 </tbody>
</table>

<h2 id="Browser_Compatibility">Browser Compatibility</h2>

{{Compat("api.PushMessageData.json")}}

<h2 id="See_also">See also</h2>

<ul>
 <li><a href="/en-US/docs/Web/API/Push_API/Using_the_Push_API">Using the Push API</a></li>
</ul>