Explain the difference in scope for these two variables: @@name and @name?

1

Explain class libraries in ruby.

1

Who is the developer of Ruby?

1

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?

1

What are the only two values that are falsy?

1

What is the use of global variable $ in Ruby?

1

How will you rename and delete a file in Ruby?

1

Explain about normal method class?

1

What is the difference between calling super and calling super()?

1

mention what is the difference between a single quote and double quote?

1

Explain about the programming language ruby?

1

How will you comment in ruby.

1

Explain the use of retry statement in ruby?

1

What are the data types in ruby?

1

Name different methods for io console in ruby?

1