Difference

Hi Jim, there isn't anything wrong with what you did, however your code and the code in the video do two slightly different things:

var shout = prompt('Shout here'); //asks for input
document.write(shout.toUpperCase()); //outputs the shout variable converted to uppercase

Your code works perfectly, the only thing is, it does not store the uppercase value of shout for future reference, this is fine here as it is only used once, but if you were to use it multiple times, it's handy to store it in its own variable, so you don't have to keep using shout.toUpperCase(), which is what the following code does:

var stringToShout = prompt("What should I shout?"); //asks for input
var shout = stringToShout.toUpperCase(); //stores uppercase stringToShout in its own variable shout
alert(shout) //outputs the shout variable

So the only difference is the code in the video stores the uppercase value for future reference whereas yours does not :)

Hope that helps!!