Modern Asynchronous Javascript
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Modern Asynchronous JavaScript
Author: Faraz K. Kelhini
language: en
Publisher: The Pragmatic Programmers LLC
Release Date: 2021-12-17
JavaScript today must interact with data-intensive APIs and networks. The solution is a program that can work asynchronously instead of finishing tasks in order. In modern JavaScript, instead of callbacks you'll use promises to improve your application's performance and responsiveness. JavaScript features introduced in ES2020, ES2021, and ESNext like Promise.allSettled(), Promise.any(), and top-level await help you develop small, fast, low-profile applications. With the AbortController API, cancel a pending async request before it has completed. Modern Asynchronous JavaScript gives you an arsenal of tools to build programs that always respond to user requests, recover quickly from difficult conditions, and deliver maximum performance. Applications today must work with information on remote servers, and users expect a quick response to complex interactions at all times, whether on a high-speed 5G cellular network or slow public WiFi. JavaScript provides developers with advanced tools to coordinate the asynchronous parts of their code efficiently and deliver responsive programs. Faster applications equal happier users, which is the promise of asynchronous JavaScript. With Modern Asynchronous JavaScript you'll learn techniques for managing your async code. Features like ES2021 Promise.any() allow you to safeguard your async code from external issues that are out of your control like server downtime. You'll discover secret weapons like top-level await to initialize resources, define dependency paths dynamically, and load dependencies with a fallback implementation. You'll even learn to how to set a time limit for async requests and react if they take too long to complete. Fast, reliable applications are a must in today's world, where users demand increasingly greater amounts of data on mobile devices. Asynchronous programming may require more cautious planning than synchronous programming but the outcome is rewarding. Asynchronous JavaScript allows you to write code that is nimble but reliable, leading to programs that load faster, respond quicker, and most importantly that you can trust to function properly. What You Need: You'll need an intermediate level of JavaScript programming skills and a browser that supports features from ES2020, ES2021, and ESNext.
Modern Asynchronous JavaScript
JavaScript today must interact with data-intensive APIs and networks. The solution is a program that can work asynchronously instead of finishing tasks in order. In modern JavaScript, instead of callbacks you'll use promises to improve your application's performance and responsiveness. JavaScript features introduced in ES2020, ES2021, and ESNext like Promise.allSettled(), Promise.any(), and top-level await help you develop small, fast, low-profile applications. With the AbortController API, cancel a pending async request before it has completed. Modern Asynchronous JavaScript gives you an arsenal of tools to build programs that always respond to user requests, recover quickly from difficult conditions, and deliver maximum performance. Applications today must work with information on remote servers, and users expect a quick response to complex interactions at all times, whether on a high-speed 5G cellular network or slow public WiFi. JavaScript provides developers with advanced tools to coordinate the asynchronous parts of their code efficiently and deliver responsive programs. Faster applications equal happier users, which is the promise of asynchronous JavaScript. With Modern Asynchronous JavaScript you'll learn techniques for managing your async code. Features like ES2021 Promise.any() allow you to safeguard your async code from external issues that are out of your control like server downtime. You'll discover secret weapons like top-level await to initialize resources, define dependency paths dynamically, and load dependencies with a fallback implementation. You'll even learn to how to set a time limit for async requests and react if they take too long to complete. Fast, reliable applications are a must in today's world, where users demand increasingly greater amounts of data on mobile devices. Asynchronous programming may require more cautious planning than synchronous programming but the outcome is rewarding. Asynchronous JavaScript allows you to write code that is nimble but reliable, leading to programs that load faster, respond quicker, and most importantly that you can trust to function properly. What You Need: You'll need an intermediate level of JavaScript programming skills and a browser that supports features from ES2020, ES2021, and ESNext.
Javascript Async
Author: Samaria Speight
language: en
Publisher: Independently Published
Release Date: 2025-12-09
Are you tired of grappling with JavaScript's asynchronous nature? Do "callback hell" or unmanageable promise chains leave you frustrated, hindering your ability to build responsive and robust applications? In today's web development landscape, mastering asynchronous programming isn't just an advantage-it's a necessity. Without a profound understanding, your applications risk becoming slow, error-prone, and difficult to maintain, leading to user dissatisfaction and developer headaches. It's time to demystify these core concepts and transform your coding approach. "Javascript Async: A Deep Dive Into Promises, Asyncawait, And Callbacks" is your definitive guide to conquering the complexities of modern asynchronous JavaScript. This book meticulously breaks down the core concepts, providing a clear path from confusion to clarity. You'll gain an unparalleled understanding, allowing you to move beyond basic implementations to truly optimize your code. This comprehensive resource covers: - The fundamental principles of asynchronous programming in JavaScript and why it's crucial for non-blocking operations and responsive UIs. - Mastering Promises: from creation and chaining to robust error handling, concurrency patterns like `Promise.all` and `Promise.race`, and advanced techniques. - Unlocking the power of Async/Await: learn how to write synchronous-looking asynchronous code, dramatically improving readability, maintainability, and debugging. - Effectively managing Callbacks: understand their role, limitations, and how to integrate them gracefully into modern async workflows without falling into common traps. - Identifying and resolving common asynchronous pitfalls, including race conditions, memory leaks, and tricky timing bugs. - Strategies for refactoring legacy callback-based code into clean, modern Promise and Async/Await patterns, enhancing existing projects. Imagine writing JavaScript code that is not only efficient and responsive but also remarkably clean and easy to debug. Picture yourself confidently tackling complex data fetching, intricate UI updates, and real-time interactions without a hint of hesitation. This book doesn't just teach you syntax; it cultivates a deep, intuitive understanding of how asynchronous JavaScript truly works, enabling you to build high-performance web applications that provide seamless user experiences, minimize bugs related to timing and state management in concurrent operations, and elevate your problem-solving skills, becoming the go-to expert for asynchronous challenges on your team. You'll future-proof your skillset, staying ahead in the rapidly evolving world of JavaScript development. With practical examples, insightful explanations, and best practices, you'll transcend basic knowledge and become a true async wizard. Stop struggling with async JavaScript and start building with confidence. "Javascript Async" is more than just a book; it's an investment in your development career. Take the definitive step towards becoming a master of modern JavaScript concurrency. Get your copy today and transform the way you write asynchronous code, forever.