Describe a routine which returns the set of integers in {1..100} divisible without remainder by 3 but not by 9.
Ruby On Rails Engineer Interview Questions
553 ruby on rails engineer interview questions shared by candidates
Write any raw joins query, no specific criteria
write a program to print pyramid pattern ? in any object oriented programming language .
This was a pair programming session with a Ruby engineer. They allow you to use your own laptop which was great but you only get 30 minutes to finish the problem with working unit tests. I think they re-use this pair programming problem so I'm not going to divulge details here. But it wasn't a particularly hard problem, they just want you to see how you code and test. Do not forget to write unit tests! Ideally you would develop it in a TDD fashion.
What is a hash with indifferent access in Ruby on Rails?
1: Remove specific hash from array. 2: Array of hash count sum of values. 3: How to setup Cron job in production server.
Suppose that the 'select' method of the Array does not exist. Implement it using the 'each' method. Pack it as a Module, ready to be mixed in.
What type of data structure would you use to implement auto-complete functionality where memory usage needs to be minimized?
Am I equally comfortable with the front-end of the Rails stack as I am with the backend?
If we have 8 same little balls, but one of them is less weight. How may times do we need to weigh them to define which ball is less weight?
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