3 Methods To Get The Last Elemen

var myArray = [1,2,3,4,5,6];

// Fastest method, requires the array is in a variable
myArray[myArray.length - 1];

// Also very fast but it will remove the element from the array also, this may or may not matter in your case.
myArray.pop();

// Slowest but very readable and doesn't require a variable
myArray.slice(-1)[0]