How can I get seconds since epoch in Javascript?

Question

On Unix, I can run date \'+%s\' to get the amount of seconds since epoch. But I need to query that in a browser front-end, not back-end.

Is there a way

Answer 1

My preferred way:

var msEpoch = (+new Date());
var sEpoch = (+new Date()) / 1000;

For more information on the + jump down the rabbit hole.