JAVASCRIPT

Reversing the elements in an array-like object

const obj = {0: 1, 1: 2, 2: 3, length: 3};
console.log(obj); // {0: 1, 1: 2, 2: 3, length: 3}

Array.prototype.reverse.call(obj); //same syntax for using apply()
console.log(obj); // {0: 3, 1: 2, 2: 1, length: 3}