Guard against null or undefined values

A simple utility to find out falsy values from an object or arrays.

get rid of exception and give default value for null or undefined properties.

Explains difference between undefined and not defined.

Is a simple npm package to check if sent arguments are null or undefined.

Clean type handling for the Go programming language with undefinable and nullable generic types.

undefined

Nano framework which defines Haskell's undefined in Swift.

undefined

Use hasNil to traverse chained object properties and check for null or undefined values.

Mass populate an Active Record database.

Filter null/undefined value.

A TypeScript isomorphic adaptation of Java's Optional.

Namaste JavaScript notes provide a comprehensive guide for mastering JavaScript. Covering key concepts, syntax, and practical applications, it's an invaluable resource for developers seeking JavaScript proficiency.

A set of useful utility functions for JavaScript run-time type checking and inspection.

Checking how undefined string and number variables handles truthiness

Statically generated webpage.

Functions that check if argument is, or is not, undefined or null

Safe navigation using ES2015 Proxies

Define what you consider "Falsify"