Setting Struct properties with an index
It's rare that I get a chance to use structs but yesterday while parsing some xml (!!!) I wrote an algorythm where it would be handy to set values of a struct with an incrementing number rather than a symbol.
Low and Behold! Ruby Structs allow you to set attributes with either the name of the property or the ordinal with which it was declared.
2.5.0 :001 > Apple = Struct.new(:color, :size) => Apple 2.5.0 :002 > apple = Apple.new => #<struct Apple color=nil, size=nil> 2.5.0 :003 > apple = 'red' => "red" 2.5.0 :004 > apple = 'huge' => "huge" 2.5.0 :005 > apple => #<struct Apple color="red", size="huge">
Structs are a great data structure that I'm going to try to use more in my daily programming.Tweet