isBoolean

Checks if a value is a boolean.

Available since v1.9.0

Import

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

isBoolean(value: unknown): value is boolean

Parameter	Type	Description
`value`	`unknown`	The value to check

value is boolean — True if value is a boolean

isBoolean(true)  // => true
isBoolean(false) // => true
isBoolean(1)     // => false