Type Alias IsAny<T>

IsAny: 0 extends 1 & T ? true : false

Type guard: detect any.

Type Parameters

T
Type to test

Remarks

Uses the 0 extends (1 & T) trick to reliably distinguish any from all other types, including unknown.

Example

type A = IsAny< any >;     // true
type B = IsAny< string >;  // false