Hands-On JavaScript High Performance

Hands-On JavaScript High Performance

Build faster web apps using Node.js, Svelte.js, and WebAssembly

person icon Justin Scherer

ebook icon Packt Publishing

language icon Language - English

updated on icon Updated on Oct, 2020

architecture icon Development,Web Development,Javascript


This eBook includes

Formats : PDF, EPUB, MOBI (Downlodable)

Pages : 376

ISBN : 9781838825867

Language : English

About the Book

Book description

An example-driven guide covering modern web app development techniques and emerging technologies such as WebAssembly, Service Workers, and Svelte.js to build faster, secure, and scalable apps

Key Features

  • Discover effective techniques for accessing DOM, minimizing painting, and using a V8 engine to optimize JavaScript
  • Understand what makes the web tick and create apps that look and feel like native desktop applications
  • Explore modern JavaScript frameworks like Svelte.js for building next-gen web apps

Book Description

High-performance web development is all about cutting through the complexities in different layers of a web app and building services and APIs that improve the speed and performance of your apps on the browser. With emerging web technologies, building scalable websites and sustainable web apps is smoother than ever.

This book starts by taking you through the web frontend, popular web development practices, and the latest version of ES and JavaScript. You'll work with Node.js and learn how to build web apps without a framework. The book consists of three hands-on examples that help you understand JavaScript applications at both the server-side and the client-side using Node.js and Svelte.js. Each chapter covers modern techniques such as DOM manipulation and V8 engine optimization to strengthen your understanding of the web. Finally, you’ll delve into advanced topics such as CI/CD and how you can harness their capabilities to speed up your web development dramatically.

By the end of this web development book, you'll have understood how the JavaScript landscape has evolved, not just for the frontend but also for the backend, and be ready to use new tools and techniques to solve common web problems.

What you will learn

  • Explore Vanilla JavaScript for optimizing the DOM, classes, and modules, and querying with jQuery
  • Understand immutable and mutable code and develop faster web apps
  • Delve into Svelte.js and use it to build a complete real-time Todo app
  • Build apps to work offline by caching calls using service workers
  • Write C++ native code and call the WebAssembly module with JavaScript to run it on a browser
  • Implement CircleCI for continuous integration in deploying your web apps

Who this book is for

This JavaScript book is for web developers, C/C++ programmers, and anyone who wants to build robust web applications using advanced web technologies. This book assumes a good grasp of Vanilla JavaScript and an understanding of web development tools, such as Chrome Developer tools or Mozilla’s developer tools.

Hands-On JavaScript High Performance

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Author Details

Packt Publishing

Packt Publishing

Founded in 2004 in Birmingham, UK, Packt's mission is to help the world put software to work in new ways, through the delivery of effective learning and information services to IT professionals.

Working towards that vision, we have published over 6,500 books and videos so far, providing IT professionals with the actionable knowledge they need to get the job done - whether that's specific learning on an emerging technology or optimizing key skills in more established tools.

As part of our mission, we have also awarded over $1,000,000 through our Open Source Project Royalty scheme, helping numerous projects become household names along the way.

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