Unlock the potential of JavaScript design patterns, the foundation for development teams seeking structured and reusable solutions to common software development challenges in this guide to improving code maintainability, scalability, and performance. Discover how these patterns equip businesses with cleaner and more maintainable code, promote team collaboration, reduce errors, and save time and costs.

 This book provides a comprehensive view of design patterns in modern (ES6+) JavaScript with real-world examples of their deployment in professional settings. You’ll start by learning how to use creational, structural, and behavioral design patterns in idiomatic JavaScript, and then shift focus to the architecture and UI patterns. Here, you’ll learn how to apply patterns for libraries such as React and extend them further to general web frontend and micro frontend approaches. The last section of the book introduces and illustrates sets of performance and security patterns, including messaging and events, asset and JavaScript loading strategies, and asynchronous programming performance patterns.

 Throughout the book, examples featuring React and Next.js, in addition to JavaScript and Web API examples, will help you choose and implement proven design patterns across diverse web ecosystems, transforming the way you approach development.

What you will learn

• Find out how patterns are classified into creational, structural, and behavioral
• Implement the right set of patterns for different business scenarios
• Explore diverse frontend architectures and different rendering approaches
• Identify and address common asynchronous programming performance pitfalls
• Leverage event-driven programming in the browser to deliver fast and secure applications
• Boost application performance using asset loading strategies and offloading JavaScript execution

Who this book is for

 This book is for developers and software architects who want to leverage JavaScript and the web platform for enhanced productivity, superior software quality, and optimized application performance.

 Prior experience with JavaScript and web development is assumed. Some of the more advanced topics in the book will be of interest to developers with intermediate experience in building for the web with JavaScript.