es6-set provides a polyfill for the ECMAScript 6 Set object, enabling developers to use Set in environments that don't natively support it. This package aims for full compliance with the ES6 specification, offering methods like add, delete, has, and forEach. It's useful for ensuring consistent behavior across different JavaScript engines and browsers, allowing cleaner and more modern code while maintaining compatibility in less-advanced environments. Perfect for projects requiring older browser support but desiring ES6 features.