Do you know when self.up and self.down method is used?
How is object methods defined in ruby?
What's the difference in scope for these two variables: @name and @@name?
Tell me how you can create a controller for subject?
How would you freeze an object in ruby? Can you provide a simple example?
difference between activesupport's “hashwithindifferentaccess” and ruby's “hash”?
Explain about garbage collection feature of ruby?
Overview of ruby programming language?
Explain the difference in scope for these two variables: @@name and @name?
In Ruby code, often it is observed that coder uses a short hand form of using an expression like array.map(&:method_name) instead of array.map { |element| element.method_name }. How this trick actually works?
Explain raise statement in Ruby?
Describe class libraries in Ruby?
Explain case statement in Ruby?
In Ruby, it explains about the defined operator?
How an exception is handled in Ruby?