comments in ruby grepper

In Ruby, comments are used to add explanatory or descriptive text to the code. They are not executed by the interpreter and are purely for human readers. There are two types of comments in Ruby: single-line comments and multi-line comments.

Single-line comments start with the hash symbol (#) and continue until the end of the line. They are commonly used to provide brief explanations or to temporarily disable a line of code.

Here is an example:

# This is a single-line comment in Ruby
puts "Hello, World!" # This line prints the string "Hello, World!"

Multi-line comments, also known as block comments, start with the =begin keyword and end with the =end keyword. They allow you to write multiple lines of comments.

Here is an example:

=begin
This is a multi-line comment in Ruby.
It can span multiple lines without the need for a hash symbol (#) at the beginning of each line.
=end

puts "Hello, World!"

Comments are helpful for documenting your code, making it easier to understand and maintain. They can also be used to temporarily remove or disable certain sections of code during development or testing.