isBoolean

Check if a value is a boolean type

Usage

Returns true if the value is a boolean type. Boxed boolean values (e.g. new Boolean(false)) are not considered booleans by this function.

import * as 
import _
_ from 'radashi'

import _
_.
function isBoolean(value: unknown): value is boolean
export isBoolean
isBoolean(true) // => true
import _
_.
function isBoolean(value: unknown): value is boolean
export isBoolean
isBoolean(false) // => true
import _
_.
function isBoolean(value: unknown): value is boolean
export isBoolean
isBoolean('true') // => false
import _
_.
function isBoolean(value: unknown): value is boolean
export isBoolean
isBoolean(1) // => false
import _
_.
function isBoolean(value: unknown): value is boolean
export isBoolean
isBoolean(new 
var Boolean: BooleanConstructor
new (value?: any) => Boolean
Boolean(true)) // => false
import _
_.
function isBoolean(value: unknown): value is boolean
export isBoolean
isBoolean(
var undefined
undefined) // => false
import _
_.
function isBoolean(value: unknown): value is boolean
export isBoolean
isBoolean(null) // => false