Multiple variables in for loop in Go

Question

I am trying to write a for loop in Go with multiple variables.

Coming from the javascript world, I'd like to achieve something like this:

    var i = 10;
    var b = 2;
    for (var a = b; i; i /= 2, b *= b ) {
      // some code
    }

I've tried a 'raw translation' like this:

   i, b := 10, 2
   for a := b; i; i /= 2, b *= b {
      // some code
    }

But it doesn't work. What is the proper syntax?

Many thanks!

Answer 1

In Go, you can do multiple variable assignment in a loop like so.

package main

func main() {
    var (
        i = 10
        b = 2
    )
    for a := b; i != 0; i, b = i/2, b*b {
      // some code
    }
}