Ruby Comment

Comments are ignored at runtime Ruby code within the comment line. Single-line comments begin with the # character, until the end of the line as follows:

When executed, the above program will produce the following results:

Hello, Ruby!

Ruby multi-line comments

You can use the syntax= begin and = endcomment multiple lines, as follows:

#! / Usr / bin / ruby ​​-w

puts "Hello, Ruby!"

= Begin
This is a multi-line comment.
Expandable to any number of rows.
= Begin and = end but only appear on the first and last rows. 
= End

When executed, the above program will produce the following results:

Hello, Ruby!

Make sure the back end of the comment from the code a sufficient distance so easy to distinguish between comments and code. If more than one trailing comment, please align them. E.g:

@counter # tracking page is clicked @siteCounter # tracks all pages are clicked