All right welcome back everyone.
So we take a look at the warning here.
The warning is that there is this change text variable has already been used.
Now you'll see that it works perfectly fine.
So you're probably wondering why on earth would it work.
And the reason is is that javascript is actually of what kind of patches things together.
In other programming languages this would completely not work but in javascript they kind of just gloss
things over.
And what it does is it just kind of makes it work.
So there's a couple things if I change this to change text variable one you'll see that it gives me
a new error saying that this is used out of scope and that's exactly what it means.
So this this variable you'll see a lot when you're beginning programming and you'll see that it says
this is use that a scope meaning that this change text variable up here is being referenced outside
of these curly brackets so these curly brackets are really important in order to change that.
You just change one here and then you see all the errors go away.
OK.
So I wanted to make sure that you know that sometimes when you get an error and it still works that
is a good thing but you want to make sure that when you do ever ship any kind of code you want to make
sure that it has error free.
Because even though it might not make an error in here it could make an error in another browser or
something like that.
All right I'll see you guys next tural.