areUndefined()

areTrue()

Checks whether the values are undefined by using every(), forEach() and some() methods of the returned object.

are-undefined.func.ts

const areUndefined = <CommonPayload extends object>(...values: any[]) =>
  areDeterminer<CommonPayload>(isUndefined, ...values);

type/src/are/lib/are-undefined.func.ts at main · angular-package/typeGitHub

Generic type variables

CommonPayloadextendsobject

The CommonPayload generic type variable constrained by the object constrains the generic type variable Payload of each returned method.

Parameters

...values: any[]

A rest parameter of any type to check its elements against undefined.

Returns

The return value is an object of every(), some() and forEach() as methods of checking supplied values.