Type annotation missing in pattern in swift 2.0

Question

I get the error "Type annotation missing in pattern" when declaring a variable as follows:

var total

What is type annotation?

Answer 1

Type annotation is the following:

var total:Int

The ":Int" is the type annotation. This must be used when you don't set a value (thus having an implied type) at the time of declaration.

If you were to define your variable as follows:

var total = 9

You would no longer need to explicitly annotate the type at the time of declaration.