Blocks And Procs In Ruby MCQs with Explanations

A chunk of code that can be passed to methods as an argument is the correct answer to “What is a block in Ruby”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

By enclosing code within curly braces {} is the correct answer to “How do you define a block in Ruby”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

A block that has been converted into an object is the correct answer to “What is a proc in Ruby”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

Using the Proc.new method or the -> (stabby lambda) syntax is the correct answer to “How do you create a proc in Ruby”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

A block can be passed directly to methods, while a proc needs to be converted into an object is the correct answer to “What is the difference between a block and a proc in Ruby”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

By passing it to a method using the yield keyword is the correct answer to “How do you call a block in Ruby”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

A type of anonymous function similar to a proc, but with stricter argument checking is the correct answer to “What is a lambda in Ruby”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

By using the -> (stabby lambda) syntax is the correct answer to “How do you define a lambda in Ruby”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

Converts the proc into a block so it can be passed to a method that expects a block parameter is the correct answer to “What does the & operator do when used with a proc in Ruby”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

To encapsulate and pass around chunks of code is the correct answer to “What is the purpose of using blocks and procs in Ruby”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

By prefixing the proc variable with an ampersand & is the correct answer to “How do you pass a proc as an argument to a method in Ruby”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

It raises an error is the correct answer to “What happens if a block is passed to a method that doesn't expect one in Ruby”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

Checks if an object is a lambda is the correct answer to “What does the lambda? method do in Ruby”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

Checks if a block has been passed to the current method is the correct answer to “What does the block_given? method do in Ruby”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

Lambdas perform strict argument checking, while procs do not is the correct answer to “In Ruby, what is the difference between a proc and a lambda”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

do is the correct answer to “Which keyword is used to define a block in Ruby”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

A NoMethodError is raised is the correct answer to “What happens if you try to yield to a block that does not exist in Ruby”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

.to_proc is the correct answer to “Which method is used to convert a block into a proc in Ruby”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

Executes the block passed to the method is the correct answer to “What does the yield keyword do in Ruby”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

block_given? is the correct answer to “Which method is used to check if a block has been passed to a Ruby method”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

A function that captures the state of its surrounding scope is the correct answer to “In Ruby, what is a closure”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

To execute the code contained within the proc or lambda is the correct answer to “What is the purpose of the call method in Ruby procs and lambdas”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

A Proc object is the correct answer to “What does the lambda keyword return in Ruby”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

Variables defined within the block cannot be modified outside the block is the correct answer to “Which of the following is true about the stability of variables within a block in Ruby”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

To skip the rest of the block and move to the next iteration is the correct answer to “What is the purpose of using the next keyword within a block in Ruby”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

To define a lambda function is the correct answer to “In Ruby, what is the purpose of the -> (stabby lambda) syntax”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.

The number of required arguments for the proc or lambda is the correct answer to “What does the arity method return for a proc or lambda in Ruby”. This question is standard in competitive examination syllabi for Blocks And Procs In Ruby.