js时间戳与日期格式的转换
1、将时间戳转换成日期格式：
function timestampToTime(timestamp) {
// 时间戳为10位需*1000，时间戳为13位不需乘1000
var date = new Date(timestamp * 1000);
var Y = date.getFullYear() + "-";
var M =
(date.getMonth() + 1 < 10
? "0" + (date.getMonth() + 1)
: date.getMonth() + 1) + "-";
var D = (date.getDate() < 10 ? "0" + date.getDate() : date.getDate()) + " ";
var h = date.getHours() + ":";
var m = date.getMinutes() + ":";
var s = date.getSeconds();
return Y + M + D + h + m + s;
}
console.log(timestampToTime(1670145353)); //2022-12-04 17:15:53
2、将日期格式转换成时间戳：
var date = new Date("2022-12-04 17:15:53:555");
// 有三种方式获取
var time1 = date.getTime();
var time2 = date.valueOf();
var time3 = Date.parse(date);
console.log(time1); //1670145353555
console.log(time2); //1670145353555
console.log(time3); //1670145353000
