| Module | ActionView::Helpers::DebugHelper |
| In: |
vendor/rails/actionpack/lib/action_view/helpers/debug_helper.rb
|
Returns a <pre>-tag that has object dumped by YAML. This creates a very readable way to inspect an object.
my_hash = {'first' => 1, 'second' => 'two', 'third' => [1,2,3]}
debug(my_hash)
=> <pre class='debug_dump'>---
first: 1
second: two
third:
- 1
- 2
- 3
</pre>
# File vendor/rails/actionpack/lib/action_view/helpers/debug_helper.rb, line 20
20: def debug(object)
21: begin
22: Marshal::dump(object)
23: "<pre class='debug_dump'>#{h(object.to_yaml).gsub(" ", " ")}</pre>"
24: rescue Exception => e # errors from Marshal or YAML
25: # Object couldn't be dumped, perhaps because of singleton methods -- this is the fallback
26: "<code class='debug_dump'>#{h(object.inspect)}</code>"
27: end
28: end