files/zh-cn/web/api/performance/onresourcetimingbufferfull/index.html


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---
title: Performance.onresourcetimingbufferfull
slug: Web/API/Performance/onresourcetimingbufferfull
translation_of: Web/API/Performance/onresourcetimingbufferfull
---
<div>{{APIRef("Resource Timing API")}}</div>

<p><strong><code>onresourcetimingbufferfull</code></strong> 属性是一个在{{event("resourcetimingbufferfull")}}事件触发时会被调用的 {{domxref("EventHandler","event handler")}} 。这个事件当浏览器的资源时间性能缓冲区已满时会触发。</p>

<h2 id="Syntax" name="Syntax">语法</h2>

<pre class="syntaxbox">callback = <em>performance</em>.onresourcetimingbufferfull = buffer_full_cb;
</pre>

<h3 id="Return_Value" name="Return_Value">返回值</h3>

<dl>
 <dt>callback</dt>
 <dd>一个当{{event("resourcetimingbufferfull")}} 事件触发时调用的{{event("Event_handlers", "event handler")}} 。</dd>
</dl>

<h2 id="例子">例子</h2>

<p>下面的示例在<code>onresourcetimingbufferfull属性上</code>设置一个回调函数。</p>

<pre class="brush: js">function buffer_full(event) {
  console.log("WARNING: Resource Timing Buffer is FULL!");
  performance.setResourceTimingBufferSize(200);
}
function init() {
  // Set a callback if the resource buffer becomes filled
  performance.onresourcetimingbufferfull = buffer_full;
}
&lt;body onload="init()"&gt;
</pre>

<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('Resource Timing', '#dom-performance-onresourcetimingbufferfull', 'onresourcetimingbufferfull')}}</td>
   <td>{{Spec2('Resource Timing')}}</td>
   <td>Initial definition.</td>
  </tr>
 </tbody>
</table>

<h2 id="浏览器兼容性">浏览器兼容性</h2>

<div>{{CompatibilityTable}}</div>

<div id="compat-desktop">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Chrome</th>
   <th>Firefox (Gecko)</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari (WebKit)</th>
  </tr>
  <tr>
   <td>Basic support.</td>
   <td>{{CompatVersionUnknown}}
    <p>{{property_prefix("-webkit")}}<br>
     {{CompatChrome(46)}} (unprefixed)<br>
     {{CompatChrome(57)}} (prefixed version removed)</p>
   </td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatNo}}</td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Android Webview</th>
   <th>Chrome for Android</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>Firefox OS</th>
   <th>IE Phone</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
  </tr>
  <tr>
   <td>Basic support.</td>
   <td>{{CompatVersionUnknown}}
    <p>{{property_prefix("-webkit")}}<br>
     {{CompatChrome(46)}} (unprefixed)<br>
     {{CompatChrome(57)}} (prefixed version removed)</p>
   </td>
   <td>{{CompatVersionUnknown}}
    <p>{{property_prefix("-webkit")}}<br>
     {{CompatChrome(46)}} (unprefixed)<br>
     {{CompatChrome(57)}} (prefixed version removed)</p>
   </td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatNo}}</td>
  </tr>
 </tbody>
</table>
</div>

<h2 id="参见">参见</h2>

<ul>
 <li>{{event("resourcetimingbufferfull")}} event</li>
 <li>{{domxref("Performance.clearResourceTimings","Performance.clearResourceTimings()")}}</li>
 <li>{{domxref("Performance.setResourceTimingBufferSize","Performance.setResourceTimingBufferSize()")}}</li>
</ul>