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Learn Practical Web Components Quickly
Rating: 4.0 out of 5(21 ratings)
121 students

Learn Practical Web Components Quickly

Build reusable web components for use in any project
Created byPackt Publishing
Last updated 3/2020
English

What you'll learn

  • Develop reusable and lightweight custom HTML elements that you can use in all your future projects
  • Build simple web components such as tooltips to create complex components such as modals and backdrops
  • Create dynamic web components that can receive data and use it to showcase UI element.
  • Make your web-components stand-alone entities by coding custom events
  • Explore the Shadow DOM and isolate CSS and JavaScript for your web components
  • Master the numerous benefits of user-defined templates when creating web components
  • Glimpse the React .js world and how it simplifies the complex process of coding web applications
  • Learn to integrate your custom web-components with React .js and Angular

Course content

4 sections • 19 lectures • 2h 25m total length

  • The Course Overview4:01

    This video will give you an overview about the course.

  • Custom Elements6:09

    Often, developers end up repeating the same structure of code unnecessarily. Web components help you resolve the unnecessary replication of code.

       •  The first step to create a web component is to create a custom element of your own

       •  To create a custom element, create a class and define a custom hyphenated name for the element

       •  Add content you want to add to your custom element

  • Shadow DOM4:49

    For web components, you need to have a DOM tree that cannot be accidentally accessed from the outside. Shadow DOM helps you encapsulate a part of the DOM.

       •  To create a shadow DOM, you need to access an element and attach shadow to it

       •  You need to ensure that mode is open so that you can reference shadow outside

       •  Add HTML and style which can only be accessed by the shadow and not by anyone else

  • HTML Templates5:29

    To resolve the problem of rewriting unnecessary code, we need to create a structure which can be reused with different content. HTML Template helps you create a structure which can be reused unlimited times.

       •  Create HTML code inside a template tag which will not be rendered until called upon

       •  Copy the template code into a variable using importNode

       •  Add content as many times as you want and add the content to any part of HTML

  • Creating Reusable HTML Templates3:44

    To create our blog page, we need two web components – a card for housing all the titles and a modal for showing the content inside the card.

       •  Create a HTML template which has a title, subtitle, and synopsis elements

       •  Fetch the content of HTML template and store it in a variable

       •  Run through data and add it to template’s placeholder elements

  • Joining the Dots7:08

    Add Shadow DOM and create a custom element to complete our first web component – Card component.

       •  Create a class for 'card' and define a custom name for it

       •  Create a shadow root and add template data to the ShadowRoot instance

       •  Import the custom element in the index.html file and call it

  • Test your knowledge

Requirements

  • Basic HTML, CSS, and JavaScript knowledge is a must! You need to have at least a basic idea of ES6 concepts such as const, let, classes, map, filters, and so on.
  • A basic understanding of JavaScript frameworks such as Angular, React, and Vue would be beneficial in order to gain a full understanding of web component integration aspects.

Description

As a developer, haven't you often suffered from writing too much code? More often than not, you rewrite the same piece of code for different pages and end up wasting precious time you could have used more productively . . .

In this course, we introduce you to the world of web components, a fairly new concept that has simplified coding for web developers. Web components allow you to create custom and reusable HTML tags that will work across modern web browsers and can be used with any JavaScript library or web framework that works with HTML.

After working through this course, you will be ready to develop production-ready web component applications! You will be able to build your own custom components that can be reused again and again. Moreover, you will also be able to share your custom components with other developers.

To benefit fully from this course, you need to have at least a basic idea of ES6 concepts such as const, let, classes, map, filters, and so on. A basic understanding of JavaScript frameworks such as Angular, React, and Vue would be beneficial in order to gain a full understanding of web component integration aspects.

About the Author

Rushabh Shah is a seasoned UI developer working in an exciting start-up based out of Mumbai. He is one of the founding members of the company and also the Senior UI Developer there. Rushabh has worked on a variety of projects across different frameworks and software architectures. His forte lies in creating web applications and user-friendly dashboards using reusable component-friendly library like React along with the latest developments in the traditional web development technologies.

Rushabh has previously worked with major companies like Capgemini India Pvt. Ltd. and Fractal Analytics and has a rich experience in developing web applications for clients like Ernst Young, Procter & Gamble (P&G), Colgate Palmolive, Reckitt Benckiser, and Indian Navy before venturing into the product domain with companies like Cuddle .ai and later Eugenie .ai (of which he is a founding member). He has also curated articles and tutorials for web development.

Having been the sole developer for a major chunk in his career, he understands the need to gain the right and efficient knowledge from the vast ocean that is, the World Wide Web. Additionally, having worked with industry stalwarts later in his career, he knows the best practices to be used for creating web tools.

Who this course is for:

  • Web developers laboring under the need to write unnecessary code or students keen to learn what web development will look like in the future will benefit from this course!

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