rotate array by k times in rails

To rotate an array in Ruby by k times, you can use the Array#rotate method. Here are the steps:

1. Initialize an array with the elements you want to rotate.
2. Call the rotate method on the array and pass in the number of times you want to rotate the array as an argument.
3. The rotate method will return a new array with the elements rotated k times.
4. Assign the result to a new variable or use it directly.

Here is an example:

array = [1, 2, 3, 4, 5]
k = 2
rotated_array = array.rotate(k)

In this example, the array [1, 2, 3, 4, 5] is rotated 2 times using the rotate method. The resulting array will be [3, 4, 5, 1, 2].

I hope this explanation helps! Let me know if you have any further questions.