Go Multi-Variable Declaration

Multi-Variable Declaration

It is possible to declare multiple variables in the same line.

Example

This example shows how multiple variables are declared.

package main
import ("fmt")

func main() {

  var a, b int
  var c, d int = 3, 5

  fmt.Println(a)
  fmt.Println(b)
  fmt.Println(c)
  fmt.Println(d)
}

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Note: When using the var keyword with type, it is only possible to declare one type of variable per line.

When the type of variable is not declared, it is possible to declare different types of variables in the same line.

Example

This example shows how multiple types of variables are declared.

package main
import ("fmt")

func main() {

  var a, b = 6, "Hello!"
  c, d := 7, "world"

  fmt.Println(a)
  fmt.Println(b)
  fmt.Println(c)
  fmt.Println(d)
}

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Go Variable Declaration in a Block

Multiple variable declarations can be grouped together into a block for greater readability.

Example

package main
import ("fmt")

func main() {

   var (
     a int
     b int = 1
     c string = "hello"
   )

  fmt.Println(a)
  fmt.Println(b)
  fmt.Println(c)
}

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