Rails7 stimulusを使用してボタンクリックでhello worldを表示する

$ bundle exec rails stimulus:install

$ rails generate stimulus Hello

// app/javascript/controllers/hello_controller.js
import { Controller } from "@hotwired/stimulus"

export default class extends Controller {
  connect() {
    console.log("Hello from Stimulus!");
  }

  greet() {
    console.log("Hello, World!");
  }
}

<!-- app/views/welcome/index.html.erb -->
<h1>Stimulus Example</h1>

<div data-controller="hello">
  <button data-action="click->hello#greet">Click me</button>
</div>

# config/routes.rb
Rails.application.routes.draw do
  root 'welcome#index'
end

$ rails s -b 0.0.0.0