---
title: Navigator.productSub
slug: Web/API/Navigator/productSub
tags:
  - API
  - DOM
  - 只读
  - 属性
translation_of: Web/API/Navigator/productSub
---
<div>{{ ApiRef("HTML DOM") }}</div>

<p><code><strong>Navigator.productSub</strong></code> 只读属性返回当前浏览器的编译版本号。 </p>

<h2 id="Syntax" name="Syntax">语法</h2>

<pre class="syntaxbox"><em>prodSub</em> = window.navigator.productSub</pre>

<ul>
 <li><code>prodSub</code>是一个字符串。</li>
</ul>

<h2 id="Example" name="Example">例子</h2>

<pre class="brush:js">&lt;script&gt;
function prodsub() {
  var dt = document.getElementById("d").childNodes[0];
  dt.data = window.navigator.productSub;
}
&lt;/script&gt;

&lt;button onclick="prodsub();"&gt;productSub&lt;/button&gt;
// returns: 20010725</pre>

<h2 id="Notes" name="Notes">注释</h2>

<p>在IE上，这个属性返回undefined。</p>

<p>在苹果Safari上和Google的Ghrome上这个属性总是返回20030107。</p>

<h2 id="说明">说明</h2>

<table class="standard-table">
 <thead>
  <tr>
   <th scope="col">说明</th>
   <th scope="col">状态</th>
   <th scope="col">注释</th>
  </tr>
 </thead>
 <tbody>
  <tr>
   <td>{{SpecName('HTML WHATWG', '#dom-navigator-productsub', 'NavigatorID: productSub')}}</td>
   <td>{{Spec2('HTML WHATWG')}}</td>
   <td>Initial definition</td>
  </tr>
 </tbody>
</table>

<h2 id="浏览器兼容性">浏览器兼容性</h2>



<p>{{Compat("api.Navigator.productSub")}}</p>