Inline input to custom function

Question

I like to implement reverse() method on string. But input should be inline. such as,

"December".reverse();

function reverse(){
    return reverse("").join(" ");
}

Answer 1

Try this ?

String.prototype.reverse = function() {
  return this.split("").reverse().join("");
}

"test".reverse() // tset

Don't forget to define the propotype before use it