How to reverse an array in Golang?

@raul_reichert You can use for loop and iterate over the elements and reverse an array in Golang, here is code:

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package main

import "fmt"

func main() {
   arr := []int{5, 4, 3, 2, 1}
   var reverse []int

   for i := len(arr) - 1; i >= 0; i-- {
      reverse = append(reverse, arr[i])
   }

   // Output: [1 2 3 4 5]
   fmt.Println(reverse)
}

@raul_reichert 

In Go, you can reverse an array by swapping its elements. Here's an example of how to do it:

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func reverseArray(arr []int) {
    for i, j := 0, len(arr)-1; i < j; i, j = i+1, j-1 {
        arr[i], arr[j] = arr[j], arr[i]
    }
}

Here, we're using a for loop to swap the first and last elements, the second and second-to-last elements, and so on until we've swapped all the elements. We're using two variables, i and j, to keep track of the indices of the elements we're swapping. We're also using a slice of integers as the input array, but this code should work for any type of array.

To use this function, simply call it with your array as the argument:

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arr := []int{1, 2, 3, 4, 5}
reverseArray(arr)
fmt.Println(arr) // [5, 4, 3, 2, 1]

This code will print the reversed array [5, 4, 3, 2, 1].