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HTML5 Web Component Fundamentals

By Cory House
Learn how to use the Shadow DOM, Custom Elements, Templates, and Imports to create reusable web components.
Course info
Rating
(458)
Level
Beginner
Updated
Jan 9, 2015
Duration
5h 3m
Table of contents
Five Problems, One Solution
Intro 1m Problem 1: Undescriptive Markup 1m Problem 2: Style Conflicts 2m Problem 3: No Native Templates 1m Problem 4: No Bundling 1m Problem 5: No Standard 6m The Solution: Web Components 2m Browser Support 2m Why Learn Web Components First? 2m Selecting a Level of Abstraction 3m The Dawn of the Democratic Web 2m Summary: Why Web Components? 2m
Templates
Intro 3m Common Approaches 3m Template Characteristics 2m Defining and Cloning 7m Injecting Dynamic Data 8m Nested Templates 3m Summary 2m
Custom Elements
Intro 6m Core Functionality 2m Registering Custom Elements 3m Instantiating Custom Elements 7m Instantiating Extended Custom Elements 8m Lifecycle Callback Methods 7m Naming Approaches 10m Summary 1m
Shadow DOM Fundamentals
Intro 2m Light DOM vs. Shadow DOM 1m You Already Use Shadow DOM 4m Shadow DOM Alternatives 4m Demo: Creating Shadow DOM 7m Shadow Host and Shadow Boundary 5m Demo: Shadow DOM Terminology 4m Demo: ShadowRoot DOM Methods 3m JavaScript Is Not Encapsulated 1m Demo: JavaScript Is Not Encapsulated 4m Summary 1m
Shadow DOM Insertion Points & Events
Intro 1m Content Insertion Points 12m Insertion Points vs. Distributed Nodes 7m Content Selectors 8m Shadow Insertion Points 11m Listing Distributed Nodes and Destination Insertion Points 6m Event Retargeting 4m Events That Stop 3m Summary 2m
Shadow DOM Styling
Intro 1m :host Pseudo Selector 4m :host Theming 4m :host Specificity 5m :host States 1m :host-context Pseudo Selector 4m Styling Distributed Nodes With the ::content Pseudo Element 5m ::shadow Pseudo Element 9m /deep/ Combinator 7m :unresolved Pseudo Selector 10m Dynamic Styling 0m Summary 1m
Imports
The Bundling Problem 7m Import Overview 3m Demo: Imports 4m Other Uses for Imports 2m Referencing the Owner Document 1m Demo: Referencing the Owner Document 11m When Does Content in Imports Apply? 2m Demo: When Does Content in Imports Apply? 6m Handling Load and Error Events 1m Demo: Handling Load and Error Events 4m Handling Duplicate Requests and Resource Conflicts 7m Sub-Imports 1m Demo: Sub-Imports 5m Summary 2m
Native Alternatives
Want Cross Browser Components Today? 3m Browser Requirements 2m Feature Matrix for Non-Standard Frameworks 2m Problems Solved by Non-Standard Frameworks 4m
Resources
Resources 2m
Description
Course info
Rating
(458)
Level
Beginner
Updated
Jan 9, 2015
Duration
5h 3m
Description

In this course, you'll learn how HTML5 Web Components give us the power to extend the web with our own rich, standards-based components. Web developers have been struggling for years to create truly reusable components. We struggle with

  • styling
  • bundling
  • defining templates
  • and encapsulating our markup and styles from accidental manipulation
But HTML5 Web Components provide the power to finally define standards-based, reusable web components through four new technologies.

Learn how to use the Shadow DOM to encapsulate the DOM and styling for your components. Define inert templates with the template tag. Extend HTML by registering your custom elements. And bundle this all together in a simple reusable package using HTML5 imports.
Course FAQ
Course FAQ
What is HTML5?

HTML5 is a markup computer programming language that is the fifth iteration of the widely used HTML programming language.

What is HTML5 used for?

HTML5 is used to structure and present content on the web. HTML code is used to describe webpages.

What will I learn in this HTML5 course?

In this course, you will learn how use Shadow DOM, Custom Elements, Templates, and Imports to create reusable web components. With these components you will see how HTML5 web components can give us power to extend web pages with our own standards-based components.

What are some of the benefits of HTML5?

Some of the benefits of HTML5 is that the language is designed to deliver most components that are needed to create a fully functioning web page without any additional software. HTML5 can do everything from animation to apps, music to movies, and can build complicated applications that run within your browser.

Are there any prerequisites for this course?

Prerequisites for this course would be an understanding of HTML basics. An understanding of the basics of HTML will make navigating this course much easier than without.

About the author
Cory House
About the author

Cory is an independent consultant with over 15 years of experience in software development. He is the principal consultant at reactjsconsulting.com and a Microsoft MVP.

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