js get last element of array

1let arr = [1,2,3]
2arr[arr.length - 1] //returns last element in an array

1var foods = ["kiwi","apple","banana"];
2var banana = foods[foods.length - 1]; // Getting last element

1var colors = ["red","blue","green"];
2var green = colors[colors.length - 1];//get last item in the array

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

1var last_element = my_array[my_array.length - 1];

1var arr = [1, 2, 3];
2var last_element = arr.reverse()[0];
3