How to use sql db or mysql db. Without defining it in the database.yml
Name different methods for io console in ruby?
How to read a file in Ruby?
what is the difference between a single quote and double quote?
what is Interpolation in Ruby?
Do you know what is the defined operator?
what is the difference extend and include?
what is the difference between a gem and a plugin in Ruby?
Mention what is the command to create a migration?
Explain me what the difference is between false and nil in ruby?
Tell me how would you freeze an object in ruby? Can you provide a simple example?
How to check whether a directory exist or not in Ruby?
What are the loops in ruby?
Are ruby strings are mutable?
What is yield in ruby?