Go – “While Do” and “Do While” loops in go

Ok, so the golang language does not exactly have the word “while” in it. Anyway, the do-while and while-do loops can be easily implemented with a for loop.

The main difference between the do-while and while-do is that in the case of do-while, the loop will be executed at least one, even if the condition is already false. At while-do the iteration will not be executed, if the condition is false.

This is the example:

package main
import (
	"fmt"
)

func main() {
	fmt.Println("while do loop:")
	i := 1
	for i < 5 {
		fmt.Println(i)
		i++
	}
	fmt.Println("do while loop:")
	j := 10
	expression := true
	for ok := true; ok; ok = expression {
		fmt.Println(j)
		j++
		if j > 5 {
			expression = false
		}
	}
}

And the result is quite expected:

while do loop:
1
2
3
4
do while loop:
10

Yup. That’s all! 🙂
 

And a video: