getFirstDayOfMonth

The getFirstDayOfMonth() function returns the first day of the month (in TheDate format) for the given date.

Interactive example

Syntax

function getFirstDayOfMonth(
	input: TheDate
): TheDate

Parameters

• input: TheDate for which to find the first day of the month.

Return value

A TheDate set to the first day of the month (at midnight UTC).

See also

• getLastDayOfMonth
• getDayOfMonth

Sources

• MDN Web Docs - Date