Function tryOr

tryOr<T, E>(error: E, callback: () => T): Result<T, E>

Execute the provided callback, wrapping the return value in Ok or Err(error) if there is an exception.

const aSuccessfulOperation = () => 2 + 2;

const anOkResult = Result.tryOr('Oh noes!!1', () => {
  aSuccessfulOperation()
}); // => Ok(4)

const thisOperationThrows = () => throw new Error('Bummer');

const anErrResult = Result.tryOr('Oh noes!!1', () => {
  thisOperationThrows();
}); // => Err('Oh noes!!1')

Type Parameters

T
E

Parameters

error: E
The error value in case of an exception
callback: () => T
The callback to try executing

Returns Result<T, E>

tryOr<T, E>(error: E): (callback: () => T) => Result<T, E>

Execute the provided callback, wrapping the return value in Ok or Err(error) if there is an exception.

const aSuccessfulOperation = () => 2 + 2;

const anOkResult = Result.tryOr('Oh noes!!1', () => {
  aSuccessfulOperation()
}); // => Ok(4)

const thisOperationThrows = () => throw new Error('Bummer');

const anErrResult = Result.tryOr('Oh noes!!1', () => {
  thisOperationThrows();
}); // => Err('Oh noes!!1')

Type Parameters

T
E

Parameters

error: E
The error value in case of an exception

Returns (callback: () => T) => Result<T, E>