instance method `slice`

Ruby on Rails 7.2.3

Since v4.0.13

Available in: v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

slice(*keys)

Returns a new ActionController::Parameters instance that includes only the given keys. If the given keys don’t exist, returns an empty hash.

params = ActionController::Parameters.new(a: 1, b: 2, c: 3)
params.slice(:a, :b) # => #<ActionController::Parameters {"a"=>1, "b"=>2} permitted: false>
params.slice(:d)     # => #<ActionController::Parameters {} permitted: false>

Parameters

keys rest

Source

# File actionpack/lib/action_controller/metal/strong_parameters.rb, line 725
    def slice(*keys)
      new_instance_with_inherited_permitted_status(@parameters.slice(*keys))
    end

Defined in actionpack/lib/action_controller/metal/strong_parameters.rb line 725 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActionController::Parameters

Signature

Parameters