Momentjs 如何获得下个月的最后日期

Question

i am trying to get the last date of the next month, for some reason momentjs returns the wrong date

For Example :

console.log(moment('02/28/2018', "MM/DD/YYYY").add(i, 'M'));

returns :

moment("2018-03-28T00:00:00.000")

where the right date should be :

moment("2018-03-31T00:00:00.000")

Answer 1

Using .add() you are just adding a month to your actual date but you want also go to last day of this month, and for this you can use .endOf() :

moment('02/28/2018', "MM/DD/YYYY").add(1, 'M').endOf("month")
// 2018-03-31T23:59:59.999Z

Answer 2

You are adding 1 month to 2/28, so you get 3/28. It only increases the month part.

To get the last day of the month, you can use:

 // Should be 12/31/2018 23:59:59 console.log(moment("2018-12-01").endOf("month").toString()); // Should be last day, hour, minute, and second of the current month console.log(moment().endOf("month").toString());

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