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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.
An exception class to throw undefined error.
Checking how undefined string and number variables handles truthiness
A simple utility to find out falsy values from an object or arrays.
An exception to throw when a Pigalle plugin is undefined.
Use hasNil to traverse chained object properties and check for null or undefined values.
Difference between null and undefined