Type Alias IResult<T, E>

IResult: IResult.ISuccess<T> | IResult.IFailure<E>

Result type for operations that can either succeed or fail.

IResult is a discriminated union representing the outcome of an operation that may fail. This pattern (often called "Result" or "Either" monad) enables explicit error handling without exceptions.

Check the IResult.success | success discriminator to determine the outcome:

true → IResult.ISuccess with the result in value
false → IResult.IFailure with the error in error

This pattern is used throughout typia for safe operations like parsing and transformation where errors are expected possibilities.

Type Parameters

T
Type of the success value
E
Type of the error value

Author

Jeongho Nam - https://github.com/samchon

Example

const result: IResult<User, ParseError> = parseUser(json);
  if (result.success) {
    console.log(result.value.name);
  } else {
    console.error(result.error.message);
  }

Type Alias IResult<T, E>

Type Parameters

Author

Example

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