1 <!DOCTYPE html>
 2 <html>
 3 <head>
 4 <meta charset="utf-8">
 5 <title>菜鸟教程(runoob.com)</title>
 6 </head>
 7 <body>
 8 
 9 <h2>将字符串转换为 Date 对象。</h2>
10 
11 <p id="demo"></p>
12 
13 <script>
14 
15 var text = ‘{ "name":"Runoob", "initDate":"2013-12-14", "site":"www.runoob.com"}‘;
16 var obj = JSON.parse(text);
17 obj.initDate = new Date(obj.initDate);
18 
19 document.getElementById("demo").innerHTML = obj.name + "创建日期: " + obj.initDate;
20 
21 </script>
22 
23 </body>
24 </html>
结果为:
Runoob创建日期: Sat Dec 14 2013 08:00:00 GMT+0800 (中国标准时间)
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
</head>
<body>
<h2>字符串转换为 Date 对象</h2>
<p id="demo"></p>
<script>
var text = ‘{ "name":"Runoob", "initDate":"2013-12-14", "site":"www.runoob.com"}‘;
var obj = JSON.parse(text, function (key, value) {
    if (key == "initDate") {
        return new Date(value);
    } else {
        return value;
}});
document.getElementById("demo").innerHTML = obj.name + "创建日期:" + obj.initDate;
</script>
</body>
</html>
结果一样.
原文:http://www.cnblogs.com/514929hgy/p/7335318.html