isUndefined

Checks if a value is undefined.

function isUndefined(value: unknown): value is undefined

Parameters

value

• Type: unknown

The value to check.

Returns

Returns true if value is undefined, else false.

Example

import { isUndefined } from '@chronus-dev/utils'

const name: unknown = undefined

if (isUndefined(name)) {
    console.log('Name is undefined') // => 'Name is undefined'
}