types-kit.if.md

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If type

If for types.

Signature:

export type If<Condition, Case1, Case2> = IfExtends<
  [IsTruthy<Condition>, true],
  Case1,
  Case2
>

References: IfExtends, IsTruthy

Example

 // Expect: 1
 type Foo = If<true, 1, 2>