get slim!
Post on 28-Nov-2014
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Simon Courtois - @happynoff
Get Slim!
Two Default Rails Stacks
http://words.steveklabnik.com/rails-has-two-default-stacks
• Views: ERB • DB: MySQL • Tests: MiniTest • Fat Models /
Skinny Controllers
• Views: Haml • DB: PostgreSQL • Tests: RSpec • Skinny Models /
Skinny Controllers /Service Layer
Two Default Rails Stacks
http://words.steveklabnik.com/rails-has-two-default-stacks
• Views: ERB!• DB: MySQL • Tests: MiniTest • Fat Models /
Skinny Controllers
• Views: Haml!• DB: PostgreSQL • Tests: RSpec • Skinny Models /
Skinny Controllers /Service Layer
ERB Haml<!DOCTYPE html> <html> <head> <title>Hello</title> </head> ! <body> <div id=“main” class=“content”> <%= yield %> </div> </body> </html>
!!! 5 %html %head %title Hello ! %body #main.content = yield
But there is another cool one!
Slim
ERB Slimdoctype html html head title Hello ! body #main.content = yield
<!DOCTYPE html> <html> <head> <title>Hello</title> </head> ! <body> <div id=“main” class=“content”> <%= yield %> </div> </body> </html>
What’s the difference?
First things first…
no fucking %(haters gonna hate)
What about attributes?
ERB
Slim
<a href=“rubyparis.org” title=“Paris.rb”>ParisRB</a>
a href=“rubyparis.org” title=“Paris.rb” ParisRB
Haml %a{href=“rubyparis.org” title=“Paris.rb”} ParisRB
Ok but why bother?
Speed!
Seco
nds
to re
ach
1000
0 ite
ratio
ns
0
0,4
0,8
1,2
1,6
1st run 2nd run
ERB Haml Slim
https://travis-ci.org/slim-template/slim/jobs/26437512
What’s the trick then?
Spaces handling
%span Hello %span Paris.rbHaml
Slim span Hello span Paris.rb
Hello Paris.rb
HelloParis.rb
Spaces handling
Haml conserves spaces by default
Slim spaces are opt-in
Spaces handling
%span> Hello %span Paris.rbHaml
Slim span Hello span Paris.rb
HelloParis.rb
HelloParis.rb
Spaces handling
%span Hello %span Paris.rbHaml
Slim span> Hello span Paris.rb
Hello Paris.rb
Hello Paris.rb
One more thing
Like it logic-less?
- articles p.title = title .content = body !-! articles p No articles yet!
Get it on
http://slim-lang.com/
Questions?
Thank youSimon Courtois - @happynoff
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