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I am building a calendar component in React without using any library but Day.js.

I need to detect the first weekday of the month in order to leave a gap as shown in the picture. Otherwise the first day of every month has to be Sunday. How can I detect the first weekday of the given date?

calendar

JustAG33K
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aydgn
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1 Answers1

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Day.js has built in function to achieve this

dayjs().startOf("month").day()

This method returns current month's first week day as number.

0 = Sunday, 6 = Saturday

aydgn
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