Declare Array Without Length in Golang

Application

Create new folder named src. In src folder, create new file named main.go as below:

package main

import "fmt"

func main() {

	a := [...]int{2, 4, 6, 8, 10}

	fmt.Println("Length : ", len(a))

	fmt.Println(a)

	fmt.Println("List of Elements")
	for i := 0; i < len(a); i++ {
		fmt.Printf("%d the element of a is %d\n", i, a[i])
	}

	fmt.Println("\nList of Elements")
	for index, value := range a {
		fmt.Printf("%d the element of a is %d\n", index, value)
	}

}

Output

Open Terminal windows in Visual Studio Code and run command line: go run main.go

Length :  5
[2 4 6 8 10]

List of Elements
0 the element of a is 2
1 the element of a is 4
2 the element of a is 6
3 the element of a is 8
4 the element of a is 10

List of Elements
0 the element of a is 2
1 the element of a is 4
2 the element of a is 6
3 the element of a is 8
4 the element of a is 10