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Merge pull request #50785 from JunichiIto/add-note-to-params-hash 

Add note about `params` hash in Action Controller Overview [ci skip]
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Petrik de Heus 2024-06-04 14:52:10 +02:00 committed by GitHub
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guides/source/action_controller_overview.md
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@ -110,7 +110,10 @@ class ClientsController < ApplicationController
end end
``` ```
NOTE: The `params` hash is not a plain old Ruby Hash; instead, it is an [`ActionController::Parameters`][] object. While it behaves like Hash, it does not inherit from Hash.
[`params`]: https://api.rubyonrails.org/classes/ActionController/StrongParameters.html#method-i-params [`params`]: https://api.rubyonrails.org/classes/ActionController/StrongParameters.html#method-i-params
[`ActionController::Parameters`]: https://api.rubyonrails.org/classes/ActionController/Parameters.html
### Hash and Array Parameters ### Hash and Array Parameters