- Inspect
It inspects the value. It formats the array with square brace, hash with curly braces with arrows between the key value pairs
inspecting parameter.
- Type
It identifying the type of the instance variable.
- Debug
It give nice, easy to read inspection of the value and displayed in a formatted way.
These are all some good ways to see what is happening inside your application code.
Example
action inside the controller
def current_status
@my_array = [1,'king', 200]
@my_hash = {'name'=> 'Pinto'}
end
in view
<%= @my_array.inspect %>
<%= @my_hash.inspect %>
<%= params.inspect %>
Result:
[1,"king", 200]
{'name'=> 'Pinto'}
{"action"=>current_status, "controller"=>sample}
To inspect the data type use 'type':
in view
<%= @my_array.type %>
<%= @my_hash.type %>
Result:
Array
Hash
Another inspection method 'debug' :
in view
<%= debug(@my_array) %>
<%= debug(@my_hash) %>
Result:
---
-1
-king
-200
---
name: Pinto
