While loop

There are no changes to the while loop functionality, so we'll cover them very briefly:

var x = 0
while (x < 10) { 
   x++ 
   println(x)
}

This will print numbers from 1 to 10. Note that we are forced to define x as var. In the following chapters, we'll discuss much more idiomatic ways to do this.

The lesser used do while loop is also present in the language:

var x = 5
   do { 
      println(x)
      x--
} while (x > 0)