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Comments

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  1. Comments

Comments

A # starts a single-line comment in Ruby, and everything after it on that line is ignored. Multi-line comments use =begin and =end, though single-line # comments are far more common in practice. Comments should explain non-obvious reasoning, not restate what the code already makes clear.

Note: Most Ruby style guides discourage =begin/=end blocks in favor of multiple # lines.

Example: Comments

markup 
# This script demonstrates comments
puts "Hello!"  # inline comment after code

=begin
This is a multi-line comment block,
though single-line # comments are more idiomatic.
=end

puts "Still running"
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