Incrementing and getting value

Question

Simple scala question. Consider the below.

scala> var mycounter: Int = 0;
mycounter: Int = 0

scala> mycounter += 1

scala> mycounter
res1: Int = 1
         


        

Answer 1

Sometimes I do this:

val nextId = { var i = 0; () => { i += 1; i} }
println(nextId())                               //> 1
println(nextId())                               //> 2

Might not work for you if you need sometime to access the value without incrementing.