js獲取一天的開始時間和結束時間和日期與字串、數值之間的轉換
var time="2016-12-29";
var dayStart = Date.parse(new Date(time));//2016-12-29 0:0:0
var dayEnd = new Date().setTime((dayStart/1000+24*60*60-1)*1000); //2016-12-29 23:59:59
字串轉日期
var time="2016-12-29 15:39:33";
var date = new Date(time);
var long = date.getTime();//獲取long值
var int = date/1000;//獲取int值
long值轉日期
var long = 1482997298664;
var date = new Date().setTime(long);
日期轉字串
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;
}
var dateStr = new Date().format("yyyy-M-d h:m:s");