Sometimes, we want to create a set of objects in JavaScript.

In this article, we’ll look at how to create a set of objects in JavaScript.

How to create a set of objects in JavaScript?

To create a set of objects in JavaScript, we use the Set constructor.

For instance, we write

const s = new Set();
const a = {};
const b = {};

s.add(a);

console.log(s.has(a));
console.log(s.has(b));

to create set s with Set.

Then we call add to add a into s.

Next we check if a and b is in s with has.

If the object reference is in the set, then it returns true.

Therefore, the first console log logs true and the 2nd one logs false.

Conclusion

To create a set of objects in JavaScript, we use the Set constructor.