True Myth / result / tryOr

Function: tryOr()

Call Signature

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

T

E

E

Parameters

error

E

The error value in case of an exception

callback

() => T

The callback to try executing

Returns

Result<T, E>

Call Signature

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

T

E

E

Parameters

error

E

The error value in case of an exception

Returns

(callback): Result<T, E>

Parameters

callback

() => T

Returns

Result<T, E>