# kojima a small functional/monad library # Usage ## Example ```js import { Identity, Some, None, Left, Right, Ok, Err } from 'kojima' const i = Identity(1) const thou = Identity(1) i.bind(x => thou.map(y => x + y)) // Identity(2) const maybe = Some('thing') maybe.isSome() // true const isnt = maybe.bind(() => None).map(_x => 'other') // None isnt.isSome() // false const either = Right('neutron') const value = either.match({ Right(value) { return value }, Left(value) { console.error('oh no') } }) // 'neutron' const result = Ok('3:41am') result.isOk() // true result.bind(() => new Error(-Infinity)) .map(_x => '4:10am') result.isErr() // true ```