range a loop of interg araty in golang code example

Example 1: loop list golang

a := []string{"Foo", "Bar"}
for i, s := range a {
    fmt.Println(i, s)
}

Example 2: go iterate over slice

nums := []int{2, 3, 4}
    sum := 0
    for _, num := range nums {
        sum += num
    }
    fmt.Println("sum:", sum)