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????? ???? ??? ?????? ???? ?? ??????. http://momentjs.com/docs/#/pa...

1. 2017-03-14-04-50-08 ??? ??? ??:

   var str = '2017/3/14 4:50:08 PM';
   var arr = str.split(/[ ^d ]+/g).map(item => (parseInt(item, 10) &lt ; 10 ? '0' + parsInt(??, 10) : ?? )).join('-');
   console.log(arr);

2. ??? ??? ??? ??? ??? ??? ????? moment.js? ?? ?????? ???? ?? ??? ????.

???

Date.prototype.past = ??(??, ???) {

};
var timeEnd = new Date();
timeEnd = timeEnd.getFullYear() + '/' + (timeEnd.getMonth() + 1) + '/' + timeEnd.getDate() + ' ' + timeEnd. getHours() + ':' + timeEnd.getMinutes();
?? ??? 10? ??? ???? ????. new Date(timeEnd).past('YYYY-MM-DD hh : mm : ss', 1/ ( 24*6));