M

Mr. Dubey • 52.30K Points
Coach 

Q. What is the purpose of the Enumerable#reduce method in Ruby?

  • (A) It filters elements of a collection based on a given condition
  • (B) It transforms each element of a collection using a given block
  • (C) It sorts elements of a collection based on a given criteria
  • (D) It combines all elements of a collection into a single value using a binary operation

Correct answer: Option(D)

Ruby Share

No solution found for this question.
Add Solution and get +2 points.

You must be Logged in to update hint/solution

Discusssion

Login to discuss.

Be the first to start discuss.

Related MCQs on Ruby

Q. In Ruby, what does the `case` statement allow you to compare against?

Q. Arrays can be used to store multiple values in one single variable.

Q. What is the method used to access class variables in Ruby?

Q. What is the purpose of the splat operator (*) in Ruby method definitions?

Q. How do you access instance variables in Ruby?

Q. What is the purpose of a subject block in RSpec?

Q. What will be the output of the given ruby code?

Q. What is the purpose of the include keyword in Ruby classes?

Q. Which method is used to find the length of an array in Ruby?

Q. What is the purpose of the --development flag when installing gems using Bundler?

Learn All Ruby MCQs