Edureify, the best AI Learning App has come with the best full-stack coding Bootcamp that teaches various programming languages. Ruby is one of the most prominent programming languages preferred by developers.
In this article, Edureify will provide the top 30 interview questions on Ruby to help aspirants prepare for their interviews. Read on to know them.
Ruby Interview Questions
- Who developed Ruby?
Ruby was developed and designed by Yukihiro ‘Martz’ Matsumoto in Japan in mid-1990.
- What is Ruby?
Ruby is a dynamic programming language. It is an open-source, reflective, general-purpose programming language that is very easy and simple to use. Ruby generates a lot of productivity. The purpose behind developing a programming language like Ruby is to make balance of the functionality of the imperative languages.
- What other language features are combined to form Ruby?
The other language features like Perl, Eiffel, Ada, Lisp, and Small Talk are a part of Ruby.
- Mention any three features of Ruby.
The following are three features of Ruby-
- Flexible
- Object-oriented
- Dynamic and Duck typing
- What are class libraries in Ruby?
The class libraries of Ruby contain various domains such as thread programming, data types, and various other domains.
- List some of the domain class libraries in Ruby.
The following is a list of domain class libraries in Ruby-
- Network Programming
- Text Processing
- CGI Programming
- XML Programming
- GUI Programming
- What are Ruby operators?
Ruby operators are symbols that are used to perform different operations.
- Name some of the Ruby operators.
The following is a list of Ruby operators-
- Arithmetic Operator
- Unary Operator
- Logical Operator
- Bitwise Operator
- Ternary Operator
- What are Ruby variables?
The Ruby variables hold data that can be used later for programming.
- Mention the four types of Ruby variables.
There are four types of Ruby variables-
- Local variables
- Class variables
- Instance variables
- Global variables
- What are Ruby data types?
The Ruby data types represent the types of data in forms like text, string, numbers, etc.
- Name the different Ruby data types.
The various Ruby data types are-
- Numbers
- Strings
- Text
- Arrays
- Symbols
- Hashes
- Booleans
- Mention the features of Nil in Ruby.
The features of Nil in Ruby are-
- It cannot be a value
- It is returned where there is no predicate
- It is not a Boolean data type
- It is a nil class object
- Mention the features of False in Ruby.
The features of False in Ruby are-
- It can be a value
- True or False is returned by a method in the case of a predicate
- It is a Boolean data type
- It is a false class object
- What is the if-statement of Ruby?
The if-statement of Ruby tests conditions.
- Mention the other statements of Ruby.
The other statements of Ruby are-
- if-statement
- if-else statement
- if-else if statement (elsif)
- ternary statement
- What are Ruby blocks?
The Ruby code blocks are usually termed closure in other programming languages. The Ruby blocks consist of a group of codes that is enclosed within braces or between do…end
- Mention the ways in which Ruby block is written.
The ways in which Ruby block is written are-
- Multi-line between do and end
- Inline between braces {}
- What is the Ruby module?
Ruby module is a collection of methods and constants. There are two methods of Ruby module-
- Instance Method
- Module Method
- Mention the purposes of the Ruby module.
The purposes of the Ruby module are-
- They enact as a namespace. They prevent clashes of the name.
- They allow the mixin facility that enables to share functionality between classes
- What are the ways of creating Ruby arrays?
The ways to create Ruby arrays are-
- Using literal constructor []
- Using a new class method
- What are the methods to access Ruby elements?
The different methods to access Ruby elements are-
- at method
- slice method
- first and the last method
- fetch method
- drop method
- take method
- What are the ways to add Ruby array elements?
The different ways to add Ruby array elements are-
- push or <<
- unshift
- insert
- What are the ways to remove elements from the Ruby array?
The ways to remove elements from the Ruby array are-
- pop
- shift
- delete
- Uniq
- What are the ways to define ranges in Ruby?
The different ways to define ranges in Ruby are-
- Ranges as sequences
- Ranges as conditions
- Ranges as intervals
- How many iterators are there in Ruby?
The following are the iterators in Ruby-
- each iterator
- times iterator
- up to and down to iterator
- step iterator
- each_line iterator
- What are the different methods of IO control in Ruby?
The different methods of IO control in Ruby are-
- IO::console
- IO#raw#raw!
- IO#cooked
- IO#cooked!
- IO#getch
- Mention the two methods to open the file in Ruby.
The two methods to open the file in Ruby are-
- File.new method
- File.open method
- Mention some of the built-in Ruby class expectations.
Some of the built-in subclasses expectations in Ruby are-
- NoMemoryError
- ScriptError
- SecurityError
- SignalException
- What is Ruby object?
In Ruby, Objects are the default root of all Ruby Objects. Ruby comes from BasicObject which helps create alternate object hierarchies.
Here were the top 30 interview questions of Ruby.
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Some FAQs on Ruby-
- What is Ruby?
Ruby is a dynamic programming language. It is an open-source, reflective, general-purpose programming language that is very easy and simple to use. Ruby generates a lot of productivity. The purpose behind developing a programming language like Ruby is to make balance the functionality of the imperative languages.
- Who developed Ruby?
Ruby was developed and designed by Yukihiro ‘Martz’ Matsumoto in Japan in mid-1990.
- What are the ways to define ranges in Ruby?
The different ways to define ranges in Ruby are-
- Ranges as sequences
- Ranges as conditions
- Ranges as intervals
- What are the ways of creating Ruby arrays?
The ways to create Ruby arrays are-
- Using literal constructor []
- Using a new class method
- From where can I learn more about Ruby?
Join the best online coding Bootcamp with Edureify to learn more about Ruby.
