Sometimes, we want to get the unique elements in a JavaScript array and sort them.

In this article, we’ll look at how to get the unique elements in a JavaScript array and sort them.

How to get the unique elements in a JavaScript array and sort them?

To get the unique elements in a JavaScript array and sort them, we use sets and the array sort method.

For instance, we write

const myData = ["237", "124", "255", "124", "366", "255"];
const uniqueAndSorted = [...new Set(myData)].sort();

to convert the myData array to a set with the Set constructor to remove the duplicate entries.

Then we convert the set back to an array with the spread operator.

Finally, we call sort to return a sorted version of the array.

Conclusion

To get the unique elements in a JavaScript array and sort them, we use sets and the array sort method.