Calculating milliseconds from epoch

2018-06-27 17:09:45

鉴于我有：mm，dd，yy，hh：mm，am / pm，推荐/最简单的方法是将数据从时代转换为毫秒。

Another technique (which most browsers support, as well as NodeJS) that doesn't require having to instantiate a Date object

var nowEpoch = Date.now();

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date

new Date("some string").getTime()

You can get the milliseconds from epoch with +new Date('date string') .

jsFiddle.

The + operator implicitly calls valueOf() which returns the same as getTime() .

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