javascript get last element in an array

1const heroes = ["Batman", "Superman", "Hulk"];
2const lastHero = heroes.pop(); // Returns last elment of the Array
3// lastHero = "Hulk"

1var last = arr.slice(-1)[0]

1let array = [1,2,3,4,5];
2let lastElement = array.pop();
3
4// array -> [1,2,3,4];
5// lastElement = 5;

1var last = arr[arr.length - 1]

1const lastItem = colors[colors.length - 1]

1f (loc_array[loc_array.length - 1] === 'index.html') {
2   // do something
3} else {
4   // something else
5}