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Safe navigation using ES2015 Proxies
Formerly rhumsaa/uuid. A PHP 5.4+ library for generating RFC 4122 version 1, 3, 4, and 5 universally unique identifiers (UUID).
Statically generated webpage.
Checking how undefined string and number variables handles truthiness
A simple library to determine whether the object is null-like or not.
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
Functions that check if argument is, or is not, undefined or null