moment().isBefore(Moment|String|Number|Date|Array); moment().isBefore(Moment|String|Number|Date|Array, String);
Check if a moment is before another moment. The first argument will be parsed as a moment, if not already so.
moment('2010-10-20').isBefore('2010-10-21'); // true
If you want to limit the granularity to a unit other than milliseconds, pass the units as the second parameter.
As the second parameter determines the precision, and not just a single value to check, using day will check for year, month and day.
moment('2010-10-20').isBefore('2010-12-31', 'year'); // false moment('2010-10-20').isBefore('2011-01-01', 'year'); // true
moment#isSame, any of the units of time that are supported for
moment#startOf are supported for
year month week day hour minute second
If nothing is passed to
moment#isBefore, it will default to the current time.
moment().isBefore() has undefined behavior and should not be used! If
the code runs fast the initial created moment would be the same as the one
created in isBefore to perform the check, so the result would be
if the code runs slower it's possible that the moment created in isBefore is
measurably after the one created in
moment(), so the call would return