Question

Are these 2 JavaScript code snippets equivalent?

jQuery(document).ready(function() {
    (function(){
        return 'something';
    })();
});

and this

jQuery(document).ready(function() {
  return (function() {
    return "something";
  })();
});

I was trying coffescript. Converting the above first code to coffescript and converting it back to JS gives the second snippet. So, I wanted to know if they are exactly same. Isn’t returning a function from within a function related to closures?

Answer 1

They’ll be the same, yeah. Except that the second one is going to use 1 more unit of stack memory.