JS 时间格式化

JS 时间格式化

/**
* JS 时间格式化参数
* 参数：格式化字符串如：'yyyy-MM-dd HH:mm:ss'
* 结果：如2017-09-15 10:09:00
*/
Date.prototype.format = function (fmt) {
var o = {
"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()
};
var year = this.getFullYear().toString();
year = year.length >= 4 ? year : '0000'.substr(0, 4 - year.length) + year;

if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (year + "").substr(4 - RegExp.$1.length));
for (var k in o)
if (new RegExp("(" + k + ")").test(fmt)) fmt = fmt.replace(RegExp.$1, (RegExp.$1.length === 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
return fmt;
};

介绍

用法

var currentTime = new Date().format("yyyy/MM/dd");
console.log(currentTime );