Component helper

component_helper.rb

module ComponentHelper
  def component(name, *args, **kwargs, &block)
    render componentize(name).new(*args, **kwargs), &block
  end

  private
    def componentize(name)
      "#{name.to_s.classify}Component".constantize
    end
end

template.html.erb

<%= component :title, "Hello there", variant: "medium" %>

title_component.rb

class TitleComponent < ApplicationComponent
  def initialize(title, variant: "large")
  end
end