Question

Which style is preferred? Is there a good reason for one vs. the other?

Thanks in advance!

1) cmds.each do |cmd|    end  2) cmds.each { |cmd|    } 

Example code:

cmds = [ 'create', 'update', 'list', 'help' ]  # Block style one # cmds.each do |cmd|   puts 'loop1, cmd: #{cmd}' end  # Block style two # cmds.each { |cmd|   puts 'loop2, cmd: #{cmd}' } 

Answer 1

The rails team and many other rubyists prefer to use curly braces for one line blocks and do...end for multi-line ones.

The only functional difference between the two is that the precedence of a do...end block is lower than that of a {...} block.