Variables in Go
In Go, variables are explicitly declared and used by the compiler to e.g. check type-correctness of function calls.
package main
import "fmt"
func main() {
// var declares 1 or more variables.
var a = "initial"
fmt.Println(a)
// You can declare multiple variables at once.
var b, c int = 1, 2
fmt.Println(b, c)
// Go will infer the type of initialized variables.
var d = true
fmt.Println(d)
// Variables declared without a corresponding initialization are zero-valued.
// For example, the zero value for an int is 0.
var e int
fmt.Println(e)
// The := syntax is shorthand for declaring and initializing a variable.
f := "apple"
fmt.Println(f)
}