Tour of Go 2.0

Variables with initializers

You can initialize variables right in the var declaration. When you do, the type is optional — Go infers it from the value you provide.

main.go ▶ Run in Playground 
package main

import "fmt"

var i, j int = 1, 2

func main() {
	var c, python, java = true, false, "no!"
	fmt.Println(i, j, c, python, java)
}