How can I modify every other element in an array using JS?

So the data is like this:

let array = ["Yes", "Yes", "Yes", "Yes"];

Expected Result:

array = ["Yes", "", "Yes", ""];

I’ve seen some answers on Stackoverflow, but I haven’t found one that shows how to modify every other element. Most show how to filter, like this one:

let x = arrar.filter((element, index) => {
  return index % 2 === 0;
})

Appreciate your help!

>Solution :

As Emiel pointed out in the comments, you don’t want to use .filter() here as that would reduce your original array. Instead use .map():

let array = ["Yes", "Yes", "Yes", "Yes"];

let x = array.map((element, index) => {
  return (index % 2 === 0) ? element : '';
})

console.log(x)