Type Alias IOption<SomeType>

IOption: OptionBuilder<true, SomeType> | OptionBuilder<false, SomeType>

IOption represents an optional value: every Option is either Some and contains a value and type, or None which does not any type.

Type Parameters

SomeType = unknown
type of the value

Example

function divide(numerator: number, denominator: number): Option<number> {
  if (denominator === 0) {
    return None<number>();
  }
  return Some(numerator / denominator);
}
const result = divide(2, 3);
if (result.isSome) {
  console.log('Result: ' + result.unwrap());
} else {
  console.log('Cannot divide by 0');
}