How to comment multiple lines in ruby..??

Question

How to comment multiple lines in ruby?

Answer 1

=begin
My 
multiline
comment
here
=end

Answer 2

#!/usr/bin/env ruby

=begin
Between =begin and =end, any number
of lines may be written. All of these
lines are ignored by the Ruby interpreter.
=end

puts "Hello world!"

Answer 3

#!/usr/bin/env ruby

=begin
Every body mentioned this way
to have multiline comments.
=end

puts "Hello world!"

<<-DOC
Also, you could create a docstring.
which...
DOC

puts "Hello world!"

"..is kinda ugly and creates
a String instance, but I know one guy
with a Smalltalk background, who
does this."

puts "Hello world!"

##
# most
# people
# do
# this


__END__

But all forgot there is another option.
Only at the end of a file, of course.

Answer 4

Despite the existance of =begin and =end, the normal and more correct way to comment is to use #'s on each line. If you read the source of any ruby library, you will see that this is the way multi-line comments are done in almost all cases.