how to get last index of an array code example

Example 1: javascript get last element of array

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

Example 2: javascript get last element of array

var linkElement = document.getElementById("BackButton");
var loc_array = document.location.href.split('/');
var newT = document.createTextNode(unescape(capWords(loc_array[loc_array.length-2]))); 
linkElement.appendChild(newT);