Comments
Comments are lines of annotation within
Ruby code that are ignored at runtime. Comments extend from
#
to the end of the line.
# This is a comment.
Ruby code can contain embedded documents
too. Embedded documents extend from a line beginning with
=begin
to the next line beginning with
=end
. =begin
and
=end
must come at the beginning of a line.
=begin This is an embedded document. =end
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