[DGD] A short question about nil, comparisons and strings.

[Par Winzell]

> Ithe logical not operator is proceeded with 'nil', does it return true or 
> false? I am assuming !0 is true and !nil is true in my code so far.

0, 0.0 and nil are all false, so !0 == !0.0 == !nil == 1 (true)

"" is true

> What about strings? What is a string initiated as, "", 0, or nil? Are all 
> those constants different?

they're all different. strings are initialized to nil.

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