Yeah love this
Ryan Bigg On 11/03/2009, at 17:19, Gavin Sinclair <[email protected]> wrote: > On Tue, Mar 10, 2009 at 3:39 PM, Torm3nt <[email protected]> wrote: > > Your turn!! > > > > A favourite of mine is that if, case, etc. are expressions, not > statements. > > value = > if expression > foo > else > bar > end > > or > > value = > begin > calculation() > rescue > default_value > end > > > Here's some real-life code of mine that uses this. It also uses > another great idiom: multiple assignment. > > @expression, @result, @filename = > case option > when "sqrt2" > two = BigDecimal.new("2") > ["sqrt(2)", sqrt(two, ACCURACY), "sqrt2"] > when "1_7" > one = BigDecimal.new("1.0") > seven = BigDecimal.new("7.0") > ["1 / 7", one.div(seven, ACCURACY), "one seventh"] > when "PI" > ["PI", PI(ACCURACY), "PI"] > else > puts "Usage: ruby cnum.rb { #{OPTIONS.join(' | ')} }" > exit! > end > > Cheers, > Gavin > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby or Rails Oceania" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/rails-oceania?hl=en -~----------~----~----~----~------~----~------~--~---
