Difference between && and AND operators
Ruby Developer Interview Questions
830 ruby developer interview questions shared by candidates
They asked about past experience, and took me through some scenarios on how do I handle some situations.
What are ACID principles Differences between Virtual Machine and Container SOAP vs REST Solid principles, when not to apply them CAP Theory Which design patterns do you know Do you have experience with test driven development? When would you use SQL and Non SQL database
Regular and easy Ruby questions
1. You begin to notice that your Rails app is loading slowly. It takes 8 seconds for a specific controller action to render. How would you troubleshoot this? 2. You are working on adding comment functionality to your Rails app that will allow users to leave comments on various models. You realize that there will be a collection of forms and model code that will be duplicated across a few models. What are some strategies you can employ for reducing duplication and bloated Active Record models? What are the pros/cons of each strategy? 3. N+ 1 code 4. Fixing rspec test cases and adding more test cases
What is a N+1 problem?
When it comes to coding for today or the future, what is my philosophy?
Tell me about yourself (the only question)
When do you use symbols in Ruby? And why?
What’s the difference between a string and a symbol?
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