Undefined Packages

A stateless implementation of the maybe monad

Monadic library to help with Typescripts --strictNullChecks

Two D's for a double dose of undefined

Nullish helper functions and types for TypeScript.

JavaScript Package for checking is variable empty,undefined or null

Maybe is a type with tow variantes Some and None, can have nothing (None) or some value (Some). The Maybe variable makes it possible to have a something depending on the particular value.

I fixed the internet!

Simple solution to this problem: "TypeError: Cannot set property 'x' of undefined"

null, undefined, separate

Library to scan inside passed value to convert null to undefined

Strip the keys from an object if the values are not defined

simple function to check if given object is defined and not null, or return optional parameter if its not

remove null/undefined values from objects

A shorthand helper function for the pattern: const x = (typeof y !== 'undefined' ? y : 'default-value');

LoDash Mixins from Decipher, Inc.

I'm Mr. Meeseeks! Look at me! I can get any nested value for you from the most complex objects.

Function that filters undefined items from an array.

Small and typesafe object property navigation for TypeScript and Flow

Run a block of code safely and quietly.