Comments in Ruby

In this tutorial, we will learn how to write comments in Ruby language. We will go through the different types of comments and how to use them in a program.

What are Comments

Comments are non-executable statements that are used to explain and document the code. They help improve the readability of the code and make it easier for others to understand. Comments can also be used to temporarily disable code during testing and debugging.

Syntax

The syntax to define comments in Ruby is:

# Single line comment
=begin
   Multi-line comment
   continues here
=end

Example 1: Single line comments

  1. Single line comments in Ruby start with # and continue to the end of the line.
  2. They are used to add short explanations or notes within the code.

Ruby Program

puts "Hello, World!"  # Print Hello, World! to the console

Output

Hello, World!

Example 2: Multiline comments

  1. Multiline comments in Ruby start with =begin and end with =end.
  2. They can span multiple lines and are used for longer explanations or to comment out blocks of code.

Ruby Program

=begin
   Print Hello, World! to the console
   This is a multi-line comment
=end
puts "Hello, World!"

Output

Hello, World!