javascript时间戳和日期字符串相互转换代码

<script type="text/javascript">

// 获取当前时间戳(以s为单位)

var timestamp = Date.parse(new Date());

timestamp = timestamp / 1000;

//当前时间戳为：1403149534

console.log("当前时间戳为：" + timestamp);

 

// 获取某个时间格式的时间戳

var stringTime = "2014-07-10 10:21:12";

var timestamp2 = Date.parse(new Date(stringTime));

timestamp2 = timestamp2 / 1000;

//2014-07-10 10:21:12的时间戳为：1404958872

console.log(stringTime + "的时间戳为：" + timestamp2);

 

// 将当前时间换成时间格式字符串

var timestamp3 = 1403058804;

var newDate = new Date();

newDate.setTime(timestamp3 * 1000);

// Wed Jun 18 2014

console.log(newDate.toDateString());

// Wed, 18 Jun 2014 02:33:24 GMT

console.log(newDate.toGMTString());

// 2014-06-18T02:33:24.000Z

console.log(newDate.toISOString());

// 2014-06-18T02:33:24.000Z

console.log(newDate.toJSON());

// 2014年6月18日

console.log(newDate.toLocaleDateString());

// 2014年6月18日 上午10:33:24

console.log(newDate.toLocaleString());

// 上午10:33:24

console.log(newDate.toLocaleTimeString());

// Wed Jun 18 2014 10:33:24 GMT+0800 (中国标准时间)

console.log(newDate.toString());

// 10:33:24 GMT+0800 (中国标准时间)

console.log(newDate.toTimeString());

// Wed, 18 Jun 2014 02:33:24 GMT

console.log(newDate.toUTCString());

 

Date.prototype.format = function(format) {

    var date = {

       "M+": this.getMonth() + 1,

       "d+": this.getDate(),

       "h+": this.getHours(),

       "m+": this.getMinutes(),

       "s+": this.getSeconds(),

       "q+": Math.floor((this.getMonth() + 3) / 3),

       "S+": this.getMilliseconds()

    };

    if (/(y+)/i.test(format)) {

       format = format.replace(RegExp.$1, (this.getFullYear() + '').substr(4 - RegExp.$1.length));

    }

    for (var k in date) {

       if (new RegExp("(" + k + ")").test(format)) {

           format = format.replace(RegExp.$1, RegExp.$1.length == 1

              ? date[k] : ("00" + date[k]).substr(("" + date[k]).length));

       }

    }

    return format;

}

console.log(newDate.format('yyyy-MM-dd h:m:s'));

 

</script>