Get the last item in an array

Question

Here is my JavaScript code so far:

var linkElement = document.getElementById(\"BackButton\");
var loc_array = document.location.href.split(\'/\');
var newT =         


        

Answer 1

const [lastItem] = array.slice(-1);

Array.prototype.slice with -1 can be used to create a new Array containing only the last item of the original Array, you can then use Destructuring Assignment to create a variable using the first item of that new Array.

const lotteryNumbers = [12, 16, 4, 33, 41, 22];
const [lastNumber] = lotteryNumbers.slice(-1);

console.log(lotteryNumbers.slice(-1));
// => [22]
console.log(lastNumber);
// => 22