isDate

Checks if a value is a Date instance.

Note: this only checks the type, not whether the Date is valid. Use date/isValid to also validate that the Date is not Invalid Date.

Available since v2.0.0

Import

import { isDate } from '@helpers4/guard';
// or, from the all-in-one package (same code, one install):
import { isDate } from 'helpers4/guard';

Signature

isDate(value: unknown): value is Date

Parameters

Parameter	Type	Description
value	unknown	The value to check

Returns

value is Date — True if value is a Date instance

Examples

isDate

isDate(new Date())          // => true
isDate(new Date('invalid')) // => true (still a Date instance)
isDate('2023-01-01')       // => false
isDate(1609459200000)      // => false

Source

View source on GitHub