Learn why Stimulus was created by DHH - covers the philosophy of modest JavaScript frameworks, server-rendered HTML, and how Stimulus differs from mainstream JavaScript frameworks like React

Introduction to Stimulus core concepts: controllers, actions, targets, and values. Explains how Stimulus enhances server-rendered HTML and separates content from behavior

Step-by-step tutorial for building your first Stimulus controller - covers creating a greeting controller with targets, actions, and DOM event handling

Build a real-world clipboard controller example - demonstrates practical Stimulus patterns, CSS classes, and connecting JavaScript to HTML elements

Best practices for building robust Stimulus applications - covers progressive enhancement, graceful degradation, and handling edge cases

Learn how Stimulus manages state through values and data attributes - covers reactive programming patterns and keeping state in sync with the DOM

Techniques for integrating external APIs and resources - covers AJAX requests, working with third-party libraries, and asynchronous operations

Complete guide to installing Stimulus in your application - covers Webpack, import maps, Rails integration, and manual setup options

Complete reference for Stimulus actions - covers action descriptors, event handling, keyboard filters, global events, action parameters, and event options like :prevent and :stop

Controller API reference - covers controller lifecycle, scopes, nested controllers, cross-controller communication with events, and registration patterns

CSS classes API reference - learn how to dynamically manage CSS classes in Stimulus controllers for styling and visual state management

Controller lifecycle callbacks reference - covers connect(), disconnect(), and target connection/disconnection callbacks for managing controller state

Outlets API reference - learn how to connect controllers to each other for component communication and coordination between different parts of your application

Targets API reference - covers target definitions, properties (singular/plural/existential), shared targets, optional targets, and target lifecycle callbacks

TypeScript integration guide - covers type definitions, strongly typed targets/values/outlets, and best practices for using Stimulus with TypeScript

Values API reference - covers value definitions, type coercion, change callbacks, and using values for reactive data binding between HTML and JavaScript