Syntax
- var x int // declare variable x with type int
- var s string // declare variable s with type string
- x = 4 // define x value
- s = "foo" // define s value
- y := 5 // declare and define y inferring its type to int
- f := 4.5 // declare and define f inferring its type to float64
- b := "bar" // declare and define b inferring its type to string
