JAVASCRIPT

remove last two elements array javascript

var arr = ['1','2','3','4'];
var amount_to_remove = 2;

arr.splice(arr.length - amount_to_remove, amount_to_remove); //['3', '4']

javascript delete second last element of array

arr.splice(arr.length - 2, 1);

remove second last element from array javascript

var pg_url = array_fragment[array_fragment.length - 2]