From: "Iñaki Baz Castillo" Date: 2011-07-01T19:55:55+09:00 Subject: Re: How to order Structs based on two fields 2011/7/1 Iñaki Baz Castillo : > I expected that the following could work: > >  array.sort_by{|entry| entry.a or entry.b} > > but it generates: > >   [kk1, kk2, kk3, kk4] > > so obviously it does not work. I'm not very used to Enumerable.sort_by > method, any tip please? Maybe it would be better to use "class KK" rather than an struct, and then define <=> method for KK class (and include Enumerable module)? -- Iñaki Baz Castillo