display last object in a array javascript example

Example 1: javascript last element of array

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

Example 2: find last element in array javascript

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