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37 interview questions on Ruby on Railsfor developers (2025)

Test your technical skills before an interview of Ruby on Rails with 37 corrected questions. Beginner, Intermediate or Expert level.

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How to call a method in a Rails class

Back-end developer
rails
class
method
Olivier Millaat Dec 2, 2021
Hard
1 vote89 runs0 comment
Medium
1 vote84 runs0 comment
Medium
1 vote82 runs0 comment
Expert
0 vote133 runs0 comment
Hard
0 vote133 runs0 comment

Rails validations: :state, :inclusion, :valid?

Back-end developer
rails
validations
Olivier Millaat Nov 11, 2021
Medium
0 vote124 runs0 comment
Medium
0 vote124 runs0 comment
Medium
0 vote123 runs1 comment
Easy
0 vote118 runs0 comment
Hard
0 vote115 runs1 comment

How to create a polymorphic association in Rails

Back-end developer
rails
activerecord
associations
Olivier Millaat Dec 2, 2021