What is the equivalent of <% debug @variable %> for Haml?

Question

I have an annoying view problem that I'm trying to debug and no where on the Haml Documentation Haml Docs does it specify how to debug view code. This is very annoying and all I need is to debug a variable. Can someone please help me with this? Thank you.

Fortress

have you tried = debug @variable? – Dotard

I knew it had to be simple! I kept trying - debug @variable. Thanks...... I feel sheepish now. – Fortress

Answer 1

In Haml, to print a result on the page, you use = sign, so in your case it is:

= @variable.inspect

To write a conditional statement, for instance if else, you would use -:

-if condition
  # logic
-else
  #logic

Note, there is no end.

Rhetoric

Thanks Andrey for distinguishing the difference. Much appreciated. – Fortress

Answer 2

I found it best to put

`= debug(params)`

in your layouts/application.html.haml

Abe

Answer 3

I just put debugger as below:

= f.input :hardware_configuration, collection: ['screen', 'screen_and_printer', 'printer_only']
= debugger

and it was there:

6:     = f.input :hardware_configuration, collection: ['screen', 'screen_and_printer', 'printer_only']  
7:     = debugger  
(byebug) n

Here you can check whatever variable is there directly(of course which you have declared and assigned in controller).

Note: I have byebug gem installed.

Valor