Function assertIsErr

assertIsErr(result: IResult<any, any>): asserts result is Err<any, any>
Type assertion function to ensure a result is Err. Throws an error if the result is Ok.
Parameters
- result: IResult<any, any>
  The result to check
Returns asserts result is Err<any, any>
Throws
If the result is Ok
- Defined in foundation/misc/Result.ts:349