isBefore()

Checks if date1 is before date2.

isBefore(string | number | Date date1, string | number | Date date2, string unit)

date1: Type: string | number | Date. A datetime string in ISO8601 format, or a timestamp in milliseconds, or a Date object.

date2: Type: string | number | Date. A datetime string in ISO8601 format, or a timestamp in milliseconds, or a Date object.

unit: Type: string. A datetime unit. Options are ‘year’, ‘month’, ‘week’, ‘day’, ‘hour’, ‘minute’, ‘second’, or ‘millisecond’.

Type: boolean

Returns true if date1 is before date2, or false otherwise.