Is there any difference when I explicitly return from a function vs. implicitly return?

Here's the code that puzzles me ATM:

function ReturnConstructor(arg){

    // Private variable. 

    var privateVar = can't touch this, return ctor.;



    // This is what is being exposed to the outside as the return object

    return {

        print: function() {

            console.log(ReturnConstructor: arg was: %s, arg);

        }

    };

}



function NormalConstructor(arg){

    // Private variable. 

    var privateVar = can't touch this, normal ctor;



    // This is what is being exposed to the outside as public

    this.print = function() {

            console.log(NormalConstructor: arg was: %s, arg);

        };

}



var ret = new ReturnConstructor(calling return);

var nor = new NormalConstructor(calling normal);

Both objects ('ret' & 'nor') seem the same to me, and I'm wondering if it's only personal preference of whomever wrote whichever article I've read so far, or if there's any hidden traps there.