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Learn/Go/Go Tutorial
Go•Go Tutorial

Go Multiple Variable Declaration

Flash cards

Review the key moves

1/4
Core idea

What is the main idea behind Go Multiple Variable Declaration?

Lesson checks

Practice each idea before moving on

Short Mimo-style checks built from this lesson's code, terms, and sequence.

1Quick choice

Which statement best captures the main point of this lesson?

2Fill blank

Complete the missing token from the example code.

___ main
3Order

Put the learning moves in the order that makes the concept easiest to apply.

In Go, it is possible to declare multiple variables on the same line.
Go Variable Declaration in a Block
Go Multiple Variable Declaration

In Go, it is possible to declare multiple variables on the same line.

Example

package main
import ("fmt")
func main() {
  var a, b, c, d int = 1, 3, 5, 7
  fmt.Println(a)
  fmt.Println(b)
  fmt.Println(c)
  fmt.Println(d)
}

Note

If you use the type keyword, it is only possible to declare one type of variable per line.

If the type keyword is not specified, you can declare different types of variables on the same line:

Example

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)
}

Go Variable Declaration in a Block

Multiple variable declarations can also 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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Go Variables

Next

Go Variable Naming Rules