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A simple library to determine whether the object is null-like or not.
Functions that check if argument is, or is not, undefined or null
get rid of exception and give default value for null or undefined properties.
Safe navigation using ES2015 Proxies
A simple utility to find out falsy values from an object or arrays.
Use hasNil to traverse chained object properties and check for null or undefined values.
Difference between null and undefined
Formerly rhumsaa/uuid. A PHP 5.4+ library for generating RFC 4122 version 1, 3, 4, and 5 universally unique identifiers (UUID).
Checking how undefined string and number variables handles truthiness
A simple, lightweight JavaScript API for handling browser cookies