What is the underscore function for?

Question

I\'ve been using underscore as a collection of statics.

What is the underscore function for:

var _ = function(obj) {
    if (obj instanceof _) return         


        

Answer 1

You wrap objects with it:

_([1, 2, 3, 4]);

And then use Underscore functions on the wrapped object:

_([1, 2, 3, 4]).shuffle()