How can I perform set operations in JavaScript?

How can I perform set operations in JavaScript?

You can use the Set object in JavaScript to perform operations like union, intersection, and difference.

Can you show me how to do a union of two sets?

Sure! You can create two sets and use the spread operator to combine them. Here's an example:

const setA = new Set([1, 2, 3]);
const setB = new Set([3, 4, 5]);
const union = new Set([...setA, ...setB]);
console.log(union); // Set { 1, 2, 3, 4, 5 }

What about finding the intersection of two sets?

To find the intersection, you can filter one set based on the values of another. Here's how:

const intersection = new Set([...setA].filter(x => setB.has(x)));
console.log(intersection); // Set { 3 }