method

[]

v7.1.3.4 - Show latest stable - 0 notes - Class: Parameters

1.0.0
1.1.6
1.2.6
2.0.3
2.1.0
2.2.1
2.3.8
3.0.0
3.0.9
3.1.0
3.2.1
3.2.8
3.2.13
4.0.2 (0)
4.1.8 (0)
4.2.1 (0)
4.2.7 (0)
4.2.9 (0)
5.0.0.1 (0)
5.1.7 (38)
5.2.3 (0)
6.0.0 (0)
6.1.3.1 (0)
6.1.7.7 (0)
7.0.0 (1)
7.1.3.2 (0)
7.1.3.4 (0)
What's this?

[](key) public

Returns a parameter for the given key. If not found, returns nil.

params = ActionController::Parameters.new(person: { name: "Francesco" })
params[:person] # => #<ActionController::Parameters {"name"=>"Francesco"} permitted: false>
params[:none]   # => nil

Show source

# File actionpack/lib/action_controller/metal/strong_parameters.rb, line 665
    def [](key)
      convert_hashes_to_parameters(key, @parameters[key])
    end

[]

Related methods