type-plus
Version:
Provides additional types for TypeScript.
5 lines • 543 B
TypeScript
export type And<A extends boolean, B extends boolean, Then = true, Else = false> = A extends true ? B extends true ? Then : Else : Else;
export type Or<A extends boolean, B extends boolean, Then = true, Else = false> = A extends true ? Then : B extends true ? Then : Else;
export type Not<X extends boolean, Then = true, Else = false> = X extends true ? Else : Then;
export type Xor<A extends boolean, B extends boolean, Then = true, Else = false> = A extends Then ? Not<B> : B extends true ? Then : Else;
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