Tired of duplicate entries cluttering your JavaScript code? Enter the `Set` object! This powerful built-in allows you to store *unique* values of any type – primitives or object references.
Think of a `Set` like a picky bouncer at a club; they only let unique individuals in. If someone already inside tries to get in again, they're turned away! This makes `Set` incredibly useful for tasks like removing duplicates from an array, checking for the existence of a value (much faster than searching an array!), and performing set operations like union, intersection, and difference.
Creating a `Set` is easy: `const mySet = new Set();`. You can add values using `.add()`, check for existence with `.has()`, and remove elements with `.delete()`. For example, `mySet.add(1); mySet.add('hello'); mySet.add(1);` will result in a set containing only `1` and `'hello'`.
Leverage the `Set` object to streamline your JavaScript and keep your data squeaky clean!
