How to implement a loop over elements of a slice or array in your programming language?

In Go, iterating over elements of a slice or array is usually done with a for loop using the range construct. It allows iterating over indices and values of the elements.

Example of iterating over a slice:

package main

import "fmt"

func main() {
    numbers := []int{10, 20, 30, 40}

    // Iterating with index and value
    for i, v := range numbers {
        fmt.Printf("Index: %d, Value: %d\n", i, v)
    }

    // If index is not needed
    for _, v := range numbers {
        fmt.Println(v)
    }
}

This loop is convenient and readable; it works with both arrays and slices.