Ruby on Rails Coding Interview Question: Reverse a String

Preparing for a Ruby on Rails coding interview may be a stressful commitment. With the correct information and practice, though, you can confidently demonstrate your skills and obtain your desired job. I present a detailed list of frequent Ruby on Rails coding interview questions in this blog article to help you prepare efficiently.

I encourage readers to practice coding challenges, review the Rails documentation, and seek additional resources to enhance their understanding of Ruby on Rails. Armed with this knowledge, you’ll be well-equipped to excel in Ruby on Rails coding interviews and secure your desired position in web development.

Question

Write a Ruby method to reverse a string.

Solution 1:

Here’s a Ruby method that reverses a string using built-in methods:

def reverse_string(str)
  str.reverse
end

puts reverse_string("Hello, world!") #=> "!dlrow ,olleH"

This method makes use of Ruby’s String class’s reverse method. It returns the reversed version of the supplied string directly.

Time Complexity

The reverse method typically has a time complexity of O(n), where n is the length of the input string. It iterates over the…