js怎么定义 SimpleDateFormat 以供下面使用？
SimpleDateFormatd1=newSimpleDateFormat("yyyy-MM-dd");SimpleDateFormatd2=newSimpleDate...
SimpleDateFormat d1 = new SimpleDateFormat("yyyy-MM-dd");
SimpleDateFormat d2 = new SimpleDateFormat("MM-dd-yyyy"); 展开
SimpleDateFormat d2 = new SimpleDateFormat("MM-dd-yyyy"); 展开
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>无标题文档</title>
<script type="text/javascript">
var SimpleDateFormat = function (pattern)
{
var reg = /[\-\/\.]/g;
var format = new RegExp ("^[ymd]+" + reg.source + "[ymd]+" + reg.source + "[ymd]+$", "i");
if (!format.test (pattern))
{
throw new Error ("the pattern paramters is not legal !");
}
this.pattern = pattern;
this.reg = reg;
this.spliter = pattern.replace (/[ymd]/gi, '').substr (1);
}
SimpleDateFormat.prototype.format = function (date)
{
if (!(date instanceof Date))
{
throw new Error ("the date paramter is not Date type.");
}
var spliter = this.spliter;
var year = date.getFullYear();
var month = date.getMonth();
var day = date.getDate();
return year + spliter + month + spliter + day;
}
SimpleDateFormat.prototype.parse = function (str)
{
var pattern = this.pattern;
var reg = new RegExp ("^" + pattern.replace (/[ymd]/gi, '\\d') + "$");
if (!reg.test (str))
{
throw new Error ("the str paramter could not be pattered.");
}
var tempDate = str.split (this.spliter);
return new Date (tempDate[0], tempDate[1], tempDate[2]);
}
var d1 = new SimpleDateFormat ("yyyy-MM-dd");
console.log (d1.parse ("2014-05-17"));
console.log (d1.format (new Date()));
</script>
</head>
<body>
</body>
</html>
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