type-challenges-solutions/en/medium-absolute

[r2abreu]

I really like the original solution.

Here's a more verbose one:

type RemoveNegativeSign<T extends string> = T extends `${infer First}${infer Rest}` 
  ? First extends "-" 
    ? Rest 
    : T 
  : never

type Absolute<T extends number | string | bigint> = RemoveNegativeSign<`${T}`>

[r2abreu]

I really like the original solution.

Here's a more verbose one:

type RemoveNegativeSign<T extends string> = T extends `${infer First}${infer Rest}` 
  ? First extends "-" 
    ? Rest 
    : T 
  : never

type Absolute<T extends number | string | bigint> = RemoveNegativeSign<`${T}`>