if (loc_array[loc_array.length - 1] === 'index.html') {
   // do something
} else {
   // something else
}

In the event that your server serves the same file for "index.html" and "inDEX.htML" you can also use: .toLowerCase().

Though, you might want to consider doing this server-side if possible: it will be cleaner and work for people without JS.

---

EDIT - ES-2022

Using ES-2022 Array.at(), the above may be written like this:

if (loc_array.at(-1) === 'index.html') {
   // do something
} else {
   // something else
}

You can access the array elements by its index. The index for the last element in the array will be the length of the array-1 (as indexes are zero based).

This should work:

var items: String[] = ["tom", "jeff", "sam"];

alert(items[items.length-1])

Here is a working sample.

Hey Jorge! I'll try to explain each part of the challenge in an easier way to understand, sometimes the wording can confuse students: For the first part of the challenge, you are wanted to set bestSport to whatever is at index 0 in the sports array. Note that you will need to do this after the bestSport variable has been initialized. For the second part of the challenge, you want to set numberOfSports to the length of the sports array. To do this, you should use the length() method off the sports array. For the final part of the challenge, you want to set lastSport to whatever is at index 0 in the sports array. To do this, you should use the numberOfSports variable. This will give you a number starting from 1, of how long the array is. As we're working in indexes, we want to start from 0 and we can do this by taking 1 away from numberOfSports. Note that in this challenge, there isn't any specific ruling and in fact, you could cheat a bit and just set the bestSport variable to "Basketball", like you originally did. This will still pass the challenge but it's best practise to try and do it the proper way ;) Hope it helps and good luck with the challenge! If you get stuck along the way or if there's something you want clarified, feel free to give me a shout :)