Divide numbers in Go

Int / Int = Int

fmt.Println(20 / 8) // 2

Float / Float = Float

func main() {
	fmt.Println(20.0 / 8) // 2.5
	fmt.Println(20 / 8.0) // 2.5
}

int / float or float / int is not allowed in Go. In the example above, when calculating 20.0 / 8, 8 is treated as float64.

When expecting floating results, ensure convert both variables to float64 first.

func main {
	a := 20
	b := 3
	// Convert the variables to float64 first
	fmt.Println(float64(a) / float64(b)) // 6.666666666666667
	// Don't do this
	fmt.Println(float64(a / b)) // 6
}