Type Alias IsLiteral<T>

IsLiteral: IsAny<T> extends true
    ? false
    : string extends T
        ? false
        : number extends T ? false : boolean extends T ? false : true

Is a type a literal (approximate): string literal, number literal, boolean literal

Type Parameters

Example

type A = IsLiteral<'hello'>; // true
type B = IsLiteral<42>; // true
type C = IsLiteral<true>; // true
type D = IsLiteral<string>; // false

Type Alias IsLiteral<T>

Type Parameters

Example

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