how-to-add-a-new-element-to-a-set-in-python in javascript

To add a new element to a Set in JavaScript, you can use the add() method of the Set object. Here is an example:

index.tsx
const mySet = new Set([1, 2, 3]); 
mySet.add(4); 
console.log(mySet); // Output: Set(4) { 1, 2, 3, 4 }
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In the above example, we create a new Set object called mySet with three elements [1, 2, 3]. Then we add a new element 4 to the set using the add() method. Finally, we log the updated set using console.log() and we get the output Set(4) { 1, 2, 3, 4 }.