Super unscientific benchmark of while loops in Java and JavaScript

while.go

package main

import "fmt"
import "time"

func main() {
  iterations := 1000000000
  count := 0
  start := time.Now().UnixNano() / 1000000

  for count < iterations {
    count++
  }

  duration := (time.Now().UnixNano() / 1000000) - start

  fmt.Printf("%v iterations in %vms", count, duration)
}

While.java

public class While {
    private static final long iterations = 1000000000;
    private static long count = 0;
 
    public static void main(String[] args) {
        long start = System.currentTimeMillis();
 
        while (count < iterations * 10) {
            count++;
        }
 
        long duration = System.currentTimeMillis() - start;
 
        System.out.println(count + " iterations in " + duration + "ms");
    }
}

while.js

var iterations = 1000000000
var count = 0
var start = Date.now()

while (count < iterations) {
  count++
}

var duration = Date.now() - start

console.log(count + ' iterations in ' + duration + 'ms')