mrmartineau

Stimulus cheatsheet

• Website: https://stimulusjs.org/
• GitHub repo: https://github.com/stimulusjs/stimulus
• Handbook: https://stimulusjs.org/handbook/introduction
• Discourse: https://discourse.stimulusjs.org/

Lifecycle callbacks

• initialize: once, when the controller is first instantiated
• connect: anytime the controller is connected to the DOM

giacomomacri

# app/helpers/forms_helper.rb
module FormsHelper

  # A custom FormBuilder class for Rails forms with Twitter Bootstrap 3
  class CustomFormBuilder < ActionView::Helpers::FormBuilder

    # ActionView::Helpers::FormHelper and ActionView::Helpers::FormBuilder
    # methods each have different args. This hash stores the names of the args
    # and the methods that have those args in order to DRY up the method aliases
    # defined below.

zeroeth

class ArrayExpander

  attr_accessor :replacements
  attr_accessor :column_order

  def initialize
    self.replacements = {}
  end