New variable?

[tmallen]

On Jun 3, 3:03 pm, Chris <cwi... at gmail.com> wrote:
> On Jun 3, 8:40 pm, tmallen <thomasmal... at gmail.com> wrote:
>
> > What's the proper way to instantiate a new variable? x = ""?
>
> You don't need to pre-declare your variables.  Just assign them as you
> need them and they will take the correct type.

unless I'm using the += or a similar operator, right? That doesn't
seem to instantiate a variable.