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60 interview questions on Ruby (legacy)for developers (2024)

Test your technical skills before an interview of Ruby (legacy) with 60 corrected questions. Beginner, Intermediate or Expert level.

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60 questions
Easy
1 vote64 runs0 comment

What is the output of the following Ruby code? `1..5.to_a`

Back-end developer
range
Olivier Millaat Nov 16, 2021
Expert
0 vote67 runs0 comment

Can we call foo on bar?

Back-end developer
ruby
singleton_method
Olivier Millaat Nov 16, 2021
Expert
0 vote49 runs0 comment

Convert a string to uppercase in Ruby

Back-end developer
strings
methods
Olivier Millaat Nov 2, 2021
Expert
0 vote47 runs0 comment

How to add a title attribute to a div in Ruby

Back-end developer
attr_accessor
ruby
Olivier Millaat Nov 29, 2021
Hard
0 vote44 runs0 comment

How to get all private methods of a class in Ruby

Back-end developer
ruby
methods
Olivier Millaat Nov 2, 2021
Expert
0 vote35 runs0 comment

What is the name of the class that is used to make HTTP requests in Ruby?

Back-end developer
http
net
Olivier Millaat Nov 16, 2021
Expert
0 vote29 runs0 comment

What is the output of the following Ruby code? `puts 'Hello World'`

Back-end developer
ruby
exceptions
Olivier Millaat Nov 2, 2021
Hard
0 vote27 runs0 comment

Ruby method overriding

Back-end developer
ruby
method
Olivier Millaat Nov 16, 2021
Medium
0 vote27 runs0 comment

How to use mixins in Ruby

Back-end developer
ruby
mixins
Olivier Millaat Nov 2, 2021
Hard
0 vote26 runs0 comment

Write a Java program that prints the first 100 prime numbers.

Back-end developer
undefined
java
Olivier Millaat Nov 29, 2021
Easy
0 vote26 runs0 comment

How to declare a variable in Ruby

Back-end developer
variables
ruby
Olivier Millaat Nov 2, 2021
Medium
0 vote26 runs0 comment

Write a Ruby program that prints the first 100 prime numbers.

Back-end developer
ruby
undefined
Olivier Millaat Nov 2, 2021
Hard
0 vote25 runs0 comment

Create a custom exception class in Ruby

Back-end developer
exceptions
classes
Olivier Millaat Nov 16, 2021
Hard
0 vote25 runs0 comment

What is the Ruby equivalent of undefined?

Back-end developer
ruby
nil
Olivier Millaat Nov 2, 2021
Medium
0 vote25 runs0 comment

Ruby code to create a class with a method that returns the value of a variable.

Back-end developer
ruby
hash
Olivier Millaat Nov 2, 2021
Medium
0 vote24 runs0 comment

Assign the first element of the array to a, the last element to b, and the rest to an array of _.

Back-end developer
arrays
tuples
Olivier Millaat Mar 24, 2023
Hard
0 vote24 runs0 comment

Which of the following two Ruby code snippets will return a hash with the same keys and values?

Back-end developer
array
hash
Olivier Millaat Nov 16, 2021
Medium
0 vote24 runs0 comment

Ruby does not support multiple inheritance.

Back-end developer
inheritance
Olivier Millaat Nov 16, 2021
Medium
0 vote24 runs0 comment

How to add a method to an object in Ruby

Back-end developer
ruby
method_missing
Olivier Millaat Nov 2, 2021
Expert
0 vote24 runs0 comment

Write a Ruby program that prints the first 100 prime numbers.

Back-end developer
ruby
undefined
Olivier Millaat Nov 2, 2021