import {Maybe} from 'monad-ts/src/maybe.js'

public class | source

Maybe

Monad → Maybe

Class Maybe - return given value or produce null if take nothing or get nothing after execution of f(v).

Method Summary

Public Methods
public	bind(f: MF<T, U>, v: T): Pr<U> Chains the operations on a monadic values.
public	nothing(): null Return nothing (null).

From class Monad
public abstract	bind(f: MF<T, U>\|D<T>, v: *): Promise<U> \| Pr<U> \| Error \| boolean \| void Binds transformation function and underlying value to the monad.
protected	fail(e: Error \| string): Error Takes Error or string return Error.
protected	just(f: function(v: T), v: T): Pr<U> Produces result after execution f(v).

Chains the operations on a monadic values.

Name	Type	Attribute	Description
f	MF<T, U>		transformation function for a monad.
v	T		underlying value for a monad.

Pr<U>

transformed by f() value v.

Return nothing (null).