How to unshift or add to the beginning of arguments object in JavaScript

Question

I\'ve just learned the convention for popping off the first element of the arguments array (which I also learned is actually an Object). Now I need to do the op

Answer 1

1. use .call() instead of .apply() to invoke unshift()

2. set arguments as the this value of unshift()

3. set 'hello' as the argument to unshift()

---

Array.prototype.unshift.call(arguments, 'hello');

---

As @lonesomeday pointed out, you can use .apply() instead of .call(), but you need to pass an array-like argument as the second argument. So in your case, you'd need to wrap 'hello' in an Array.