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isDate

Check if the given value is a Date object.

This function can also serve as a type predicate in TypeScript, narrowing the type of the argument to Date.

Signature

typescript
function isDate(value: unknown): value is Date;

Parameters

  • value(unknown): The value to test if it is a Date object.

Returns

(value is Date): True if the value is a Date object, otherwise false.

Examples

typescript
const value1 = new Date();
const value2 = '2024-01-01';

console.log(isDate(value1)); // true
console.log(isDate(value2)); // false

Released under the MIT License.