javascript find last element in array

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

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

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

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

arr.slice(-1)[0] 

const numArray = [1,2,3,4,5];
const lastNumber = numArray.reverse()[0]; 

var array =[1,2,3,4];
var last= array[array.length-1];

this = array[array.length - 1];

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

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