isNull#

Check if the given value is null.

Usage Scenarios#

• Null Check: Verify if a value is specifically null (not undefined or other falsy values).
• Data Validation: Validate API responses or user input.
• Type Safety: Ensure type safety when null is a valid case.

Examples#

import { isNull } from 'funtool';

isNull(null); // ✅ true
isNull(undefined); // ❌ false
isNull(0); // ❌ false
isNull(''); // ❌ false

Signature#

function isNull(v: any): boolean

Parameters#

• v (any): The value to test if it is null.

Returns#

• (boolean): Returns true if the value is null, otherwise returns false.