IsLiteral

Type parameters

• A: any

  to be checked

• kind: Kind

  (?='string' | 'number') to restrict

import {A} from 'ts-toolbelt'

type test0 = A.IsLiteral<1 | 2> // 1
type test1 = A.IsLiteral<1 | 2, string> // 0
type test2 = A.IsLiteral<1 | '2', string> // 0 | 1
type test3 = A.IsLiteral<number> // 0