Type Alias IsNumericLiteral<T>

IsNumericLiteral: IfNotAnyOrNever<
    T,
    {
        ifAny: false;
        ifNever: false;
        ifNot: _IsNumericLiteral<CollapseLiterals<UnwrapBrand<T>>>;
    },
>

Returns a boolean for whether the given type is a number or bigint literal type.

Type Parameters

T

Example

import type {IsNumericLiteral} from 'type-fest';

type A = IsNumericLiteral<0>;
//=> true

type B = IsNumericLiteral<number>;
//=> false

type C = IsNumericLiteral<100n>;
//=> true

type D = IsNumericLiteral<bigint>;
//=> false

type E = IsNumericLiteral<1 | 2 | 10n | 20n>;
//=> true

type F = IsNumericLiteral<number | bigint>;
//=> false

type G = IsNumericLiteral<1 | bigint>;
//=> boolean