dayNumber: 28, monthNumber: 2,

expected output using moment "2022-02-28"

What I've tried const date = moment() .month(monthNumber) .days(dayNumber) .format("YYYY-MM-DD");

but that gives me something like "2022-03-17"

what am I doing wrong?

CodePudding user response：

You have two errors in your code:

• The first one is that you need to replace the days function call with date
• The second one is that the argument of the month function starts from 0. So 0 is January, 1 is February etc.

So, what you need to do in order to get 2022-02-28 is the following:

const date = moment() .month(1) .date(28) .format("YYYY-MM-DD");

CodePudding user response：

.month expects values from 0-11. See: https://momentjs.com/docs/#/get-set/month/

.days is day of week, .date is day of month. See: https://momentjs.com/docs/#/get-set/day/ and https://momentjs.com/docs/#/get-set/date/

 const date = moment().month(monthNumber-1).date(dayNumber).format("YYYY-MM-DD");

CodePudding user response：

You can also create a moment instance with an array of numbers that mirror the parameters passed to new Date(), e.g. [year, month, day].

See moment/parsing/array

NB: Month is zero-indexed.

const year = 2022;
const monthNumber = 2;
const dayNumber = 28;

console.log(moment([year, monthNumber - 1, dayNumber]).format('YYYY-MM-DD'))

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