blob: 27d5a11128a277fa5282694edb9a4b9aa1efb4b0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
---
title: HTMLMediaElement.buffered
slug: Web/API/HTMLMediaElement/buffered
translation_of: Web/API/HTMLMediaElement/buffered
---
<div>{{APIRef("HTML DOM")}}</div>
<p><strong><code>HTMLMediaElement.buffered</code></strong> 返回一个只读 {{domxref("TimeRanges")}} 对象 返回媒体已缓冲的区域</p>
<div class="note"><strong>Note:</strong> This feature is not available in <a href="/en-US/docs/Web/API/Web_Workers_API">Web Workers</a>.</div>
<h2 id="Syntax" name="Syntax">语法</h2>
<pre class="syntaxbox">var <em>timeRange</em> = <em>audioObject</em>.buffered</pre>
<h3 id="返回值">返回值</h3>
<p>对象{{domxref("TimeRanges")}}</p>
<p>length - 获得音频/视频中已缓冲范围的数量</p>
<p>buffered.start 开始的区域 </p>
<p>buffered.end 结束的区域</p>
<h2 id="例子">例子</h2>
<pre>var obj = document.createElement('video');
console.log(obj.buffered); // TimeRanges { length: 0 }
console.log(obj.buffered.start(0));//第一个缓存开始的区域
console.log(obj.buffered.end(0));//第一个缓存结束的区域</pre>
<h2 id="参考文档">参考文档</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', "embedded-content.html#media-elements", "HTMLMediaElement.buffered")}}</td>
<td>{{Spec2('HTML WHATWG')}}</td>
<td>No change from {{SpecName('HTML5 W3C')}}</td>
</tr>
<tr>
<td>{{SpecName('HTML5 W3C', "embedded-content-0.html#htmlmediaelement", "HTMLMediaElement.buffered")}}</td>
<td>{{Spec2('HTML5 W3C')}}</td>
<td>Initial definition.</td>
</tr>
</tbody>
</table>
<h2 id="浏览器兼容性">浏览器兼容性</h2>
{{Compat("api.HTMLMediaElement.buffered")}}
<h2 id="See_Also" name="See_Also"><font><font>也可以看看</font></font></h2>
<ul>
<li>The interface defining it, {{domxref("HTMLMediaElement")}}.</li>
</ul>
|
