pick element from array that is part of params hash

To pick an element from an array that is part of the params hash in Ruby, you can follow these steps:

1. Access the params hash using the params keyword.
2. Identify the key corresponding to the array you want to access within the params hash.
3. Use the key to retrieve the array from the params hash.
4. Apply array methods or index access to pick the specific element from the array as needed.