← Coding 101 · 2015 EpisodesRuby on Rails (4)S2 · E20 · 18 May 2015 · 1 hr 5 minBest coding practices, and Carlos Souza with Ruby part 4 of 4.Guest Stars (1)Carlos Souza as Self - Guest← 19. Persistent Databases & Ruby (3)21. Wildcard! With Peggy Fisher →