Web Components

Web Components are a suite of web platform APIs that allow developers to create reusable, custom HTML elements with their functionality encapsulated and kept separate from the rest of the application's code. Leveraging three core technologies—Custom Elements for defining new HTML tags, the Shadow DOM for isolating a component's internal markup and styles, and HTML Templates for defining inert, reusable content—developers can build self-contained UI widgets. This browser-native approach enables the creation of interoperable, framework-agnostic building blocks for user interfaces, promoting a more modular, scalable, and maintainable architecture in web development.

1. Introduction to Web Components
   1. Definition and Overview
      1. What are Web Components
      2. Historical Context and Evolution
      3. Browser Support Timeline
   2. Core Philosophy and Goals
      1. Encapsulation
         1. Isolating Markup
         2. Isolating Styles
         3. Isolating Behavior
      2. Reusability
         1. Cross-Project Sharing
         2. Framework Independence
      3. Interoperability
         1. Framework-Agnostic Usage
         2. Native Browser Integration
      4. Standardization
         1. W3C Specifications
         2. Browser Implementation Status
   3. Advantages over Traditional Component Models
      1. Comparison with Framework Components
      2. Native Browser Support Benefits
      3. Reduced Dependencies
      4. Performance Characteristics
   4. The Four Core Technologies Overview
      1. Custom Elements
      2. Shadow DOM
      3. HTML Templates
      4. ES Modules