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---
title: Date.prototype.getFullYear()
slug: Web/JavaScript/Reference/Global_Objects/Date/getFullYear
tags:
- Date
- JavaScript
- Method
- Prototype
- Reference
translation_of: Web/JavaScript/Reference/Global_Objects/Date/getFullYear
---
<p>{{JSRef}}</p>
<p><strong><code>getFullYear()</code></strong> 方法根据本地时间返回指定日期的年份。</p>
<p>此方法替代 {{jsxref("Date.prototype.getYear()", "getYear()")}} 。</p>
<div>{{EmbedInteractiveExample("pages/js/date-getfullyear.html")}}</div>
<h2 id="Syntax" name="Syntax">语法</h2>
<pre style="margin-bottom: 0px; padding: 1em; border-left-width: 6px; border-left-style: solid; font-family: Consolas, Monaco, 'Andale Mono', monospace; font-size: 14px; text-shadow: none; direction: ltr; white-space: normal; background-color: rgba(212, 221, 228, 0.498039);"><code class="language-html" style="font-family: Consolas, Monaco, 'Andale Mono', monospace; color: inherit; text-shadow: none; direction: ltr;">dateObj.getFullYear()</code>
</pre>
<h3 id="Description" name="Description">返回值</h3>
<p>根据当地时间，返回一个对应于给定日期的年份数字。</p>
<h2 id="描述">描述</h2>
<p><code>getFullYear()</code>返回的值是绝对数。 对于1000到9999之间的日期，<code>getFullYear()</code>返回一个四位数字，如1995。使用此函数确保在2000年后兼容。</p>
<h2 id="Examples" name="Examples">例子</h2>
<h3 id="Example:_Using_getFullYear" name="Example:_Using_getFullYear">使用<code>getFullYear()</code></h3>
<p>下面的例子将当前年份的四位数值分配给变量<code>year</code>。</p>
<pre class="brush: js">var today = new Date();
var year = today.getFullYear();
</pre>
<h2 id="规范" style="margin-bottom: 20px; line-height: 30px;">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('ES1')}}</td>
<td>{{Spec2('ES1')}}</td>
<td>Initial definition. Implemented in JavaScript 1.3.</td>
</tr>
<tr>
<td>{{SpecName('ES5.1', '#sec-15.9.5.10', 'Date.prototype.getFullYear')}}</td>
<td>{{Spec2('ES5.1')}}</td>
<td> </td>
</tr>
<tr>
<td>{{SpecName('ES6', '#sec-date.prototype.getfullyear', 'Date.prototype.getFullYear')}}</td>
<td>{{Spec2('ES6')}}</td>
<td> </td>
</tr>
<tr>
<td>{{SpecName('ESDraft', '#sec-date.prototype.getfullyear', 'Date.prototype.getFullYear')}}</td>
<td>{{Spec2('ESDraft')}}</td>
<td> </td>
</tr>
</tbody>
</table>
<h2 id="浏览器兼容性" style="margin-bottom: 20px; line-height: 30px;">浏览器兼容性</h2>
<p>{{Compat("javascript.builtins.Date.getFullYear")}}</p>
<h2 id="See_Also" name="See_Also" style="margin-bottom: 20px; line-height: 30px;">相关链接</h2>
<ul>
<li>{{jsxref("Date.prototype.getUTCFullYear()")}}</li>
<li>{{jsxref("Date.prototype.setFullYear()")}}</li>
<li>{{jsxref("Date.prototype.getYear()")}}</li>
</ul>
|
