freeCodeCamp Challenge Guide: Create and Add to Sets in ES6

Create and Add to Sets in ES6


Problem Explanation

To solve this problem, you have to add an array of items to the set.


Hints

Hint 1

Use the add function to add an array of strings to the set.

Hint 2

Use the length attribute on the values of the Set.


Solutions

Solution 1 (Click to Show/Hide)
function checkSet() {
  var set = new Set([1, 2, 3, 3, 2, 1, 2, 3, 1]);
  set.add("Taco");
  set.add("Cat");
  set.add("Awesome");
  console.log(Array.from(set));
  return set;
}

checkSet();

Code Explanation

  • Creating a set object as shown in pre-written code will create the set without duplicate objects.
  • Therefore, by using the add function, we can add items to the set and they will not be duplicated, and will still be represented in the array.