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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)

    
initial







    
    
        
    

    






    
    
         You can declare multiple variables at once.
    
	var b, c int = 1, 2

    






    
    
	fmt.Println(b, c)

    
1 2







    
    
        
    

    






    
    
         Go will infer the type of initialized variables.
    
	var d = true

    






    
    
	fmt.Println(d)

    
true







    
    
        
    

    






    
    
         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)

    
0







    
    
        
    

    






    
    
         The `:=` syntax is shorthand for declaring and initializing a variable, e.g. for `var f string = "apple"` in this case.
    
	f := "apple"

    






    
    
	fmt.Println(f)

    
apple







    
    
}

    






    
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