Type alias TypeGuardFunction<T>

Type declaration

• • (obj): obj is T

  • A function that checks the input object against a specific type.

    Parameters

    • obj: any

    Returns obj is T

    Example

    type Foo {
      bar: number
    }
    
    function isFoo(obj: any): obj is Foo {
      const _obj: Partial<Foo> | null | undefined = obj
      return typeof _obj?.bar === "number"
    }
    Copy