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