Case statement with multiple values in each when block

Question

The best way I can describe what I m looking for is to show you the failed code I ve tried thus far   case car   when   honda    acura   include  car        code   when  toyota      lexus        code end   I ve got about 4 or 5 different when situations that should be triggered by approximately 50 different possible values of car  Is there a way to do this with case blocks or should I try a massive if block

User · Accepted Answer

In a case statement  a   is the equivalent of    in an if statement    case car    when  toyota    lexus          code end   Some other things you can do with a Ruby case statement

User · Answer

Another nice way to put your logic in data is something like this     Initialization  CAR TYPES       foo type    honda    acura    mercedes      bar type    toyota    lexus       More       type for name      CAR TYPES each    type  names  names each    name   type for name type    name      case  type for name car  when  foo type     do foo things when  bar type     do bar things end

User · Answer

You might take advantage of ruby s  splat  or flattening syntax   This makes overgrown when clauses     you have about 10 values to test per branch if I understand correctly     a little more readable in my opinion   Additionally  you can modify the values to test at runtime   For example   honda      honda    acura    civic    element    fit        toyota     toyota    lexus    tercel    rx    yaris             if include concept cars   honda      ev-ster    concept c    concept s              end  case car when  toyota     Do something for Toyota cars when  honda     Do something for Honda cars     end   Another common approach would be to use a hash as a dispatch table  with keys for each value of car and values that are some callable object encapsulating the code you wish to execute

[ruby-on-rails] Case statement with multiple values in each 'when' block

Examples related to ruby-on-rails

Examples related to ruby

Examples related to syntax

Examples related to switch-statement