A collection of practical Web Components examples that demonstrate core concepts and APIs for MDN documentation.
MDN Web Components Examples is a collection of practical code samples that demonstrate how to use Web Components APIs like Custom Elements, Shadow DOM, HTML Templates, and Slots. It serves as a companion to the MDN documentation, providing hands-on examples for developers learning to build reusable UI components.
Frontend developers and web engineers who are learning Web Components or need reference implementations for specific APIs and patterns.
Developers choose this because it offers official, well-documented examples directly tied to MDN's authoritative documentation, ensuring accuracy and best practices for learning Web Components fundamentals.
A series of web components examples, related to the MDN web components documentation at https://developer.mozilla.org/en-US/docs/Web/Web_Components.
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Examples are directly tied to MDN's official documentation, ensuring they adhere to web standards and best practices, such as proper use of life-cycle callbacks and Shadow DOM encapsulation.
Each example includes a live demo link (e.g., for 'edit-word' or 'popup-info'), allowing developers to test concepts immediately without any setup, enhancing hands-on learning.
Designed to teach one concept at a time, like the `composedPath` event property or `::slotted` pseudo-element, making it ideal for incremental understanding without overwhelming complexity.
Covers key Web Components APIs including autonomous custom elements (e.g., '<edit-word>'), customized built-in elements (e.g., expanding lists), and templates with slots, providing a broad foundational overview.
Examples are written in plain JavaScript without integration with modern frameworks like Lit or Stencil, so developers must seek additional resources for framework-specific implementations or tooling.
Focuses on fundamental concepts and lacks examples for advanced real-world scenarios such as state management, testing, performance optimization, or integration with build systems.
As a collection of static examples, it doesn't include development servers, dependency management, or build processes, requiring users to set up their own environment for extended use.