Where does a scope change in a ruby program?

5

In Ruby code, often it is observed that coder uses a short hand form of using an expression like array.map(&:method_name) instead of array.map { |element| element.method_name }. How this trick actually works?

5

Please explain what are some advantages of using ruby?

1

Explain me what the difference is between false and nil in ruby?

1

Tell me what are blocks and procs?

1

Name some operators used in ruby.

1

Is ruby a dying language?

1

Tell us what is the difference between dynamic and static scaffolding?

1

How do you handle exceptions in ruby code?

5

What function converts all html special symbols to html entities in ruby?

1

What are ruby blocks.

1

What is ruby software and where and when it is usefull.

5

As you know ruby provides four types of variables. List them and provide a brief explanation for each?

1

Explain some of the looping structures available in ruby?

5

Explain about environment variables present in ruby?

5