> On Jun 21, 8:04 pm, Xiahong Gao <[email protected]> wrote:
> I am newb. I feel confused about how params works.
>
> I understand @params is an attribute of CLASS, but what is params? A
> named parameter? Because I thought instance attributes always begin
> with "@”, so params/request/flash/etc looks like a local variable.
>
> thanks in advance
> Xiahong
params, request, etc are just instance methods that return hashes.
for example, flash'es implementation (action_controller/flash.rb):
def flash #:doc:
unless defined? @_flash
@_flash = session["flash"] ||= FlashHash.new
@_flash.sweep
end
@_flash
end
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