Async Javascript

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Async Javascript

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Author : Trevor Burnham
language : en
Publisher: The Pragmatic Programmers LLC
Release Date : 2012-11-28

Async Javascript written by Trevor Burnham and has been published by The Pragmatic Programmers LLC this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-11-28 with Computers categories.

With the advent of HTML5, front-end MVC, and Node.js, JavaScript is ubiquitous--and still messy. This book will give you a solid foundation for managing async tasks without losing your sanity in a tangle of callbacks. It's a fast-paced guide to the most essential techniques for dealing with async behavior, including PubSub, evented models, and Promises. With these tricks up your sleeve, you'll be better prepared to manage the complexity of large web apps and deliver responsive code. With Async JavaScript, you'll develop a deeper understanding of the JavaScript language. You'll start with a ground-up primer on the JavaScript event model--key to avoiding many of the most common mistakes JavaScripters make. From there you'll see tools and design patterns for turning that conceptual understanding into practical code. The concepts in the book are illustrated with runnable examples drawn from both the browser and the Node.js server framework, incorporating complementary libraries including jQuery, Backbone.js, and Async.js. You'll learn how to create dynamic web pages and highly concurrent servers by mastering the art of distributing events to where they need to be handled, rather than nesting callbacks within callbacks within callbacks. Async JavaScript will get you up and running with real web development quickly. By the time you've finished the Promises chapter, you'll be parallelizing Ajax requests or running animations in sequence. By the end of the book, you'll even know how to leverage Web Workers and AMD for JavaScript applications with cutting-edge performance. Most importantly, you'll have the knowledge you need to write async code with confidence. What You Need: Basic knowledge of JavaScript is recommended. If you feel that you're not up to speed, see the "Resources for Learning JavaScript" section in the preface.

Javascript Frameworks For Modern Web Development

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Author : Sufyan bin Uzayr
language : en
Publisher: Apress
Release Date : 2019-10-31

Javascript Frameworks For Modern Web Development written by Sufyan bin Uzayr and has been published by Apress this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-10-31 with Computers categories.

Enrich your software design skills and take a guided tour of the wild, vast, and untamed frontier that is JavaScript development. Especially useful for frontend developers, this revision includes specific chapters on React and VueJS, as well as an updated one on Angular. To help you get the most of your new skills, each chapter also has a "further reading" section. This book will serve as an introduction to both new and well established libraries and frameworks, such as Angular, VueJS, React, Grunt, Yeoman, RequireJS, Browserify, Knockout, Kraken, Async.js, Underscore, and Lodash. It also covers utilities that have gained popular traction and support from seasoned developers and tools applicable to the entire development stack, both client- and server-side. While no single book can possibly cover every JavaScript library of value, JavaScript Frameworks for Modern Web Development focuses on incredibly useful libraries and frameworks that production software uses. You will be treated to detailed analyses and sample code for tools that manage dependencies, structure code in a modular fashion, automate repetitive build tasks, create specialized servers, structure client side applications, facilitate horizontal scaling, and interacting with disparate data stores. What You'll Learn Work with a variety of JavaScript frameworks, such as Angular, Vue, React, RequireJS, Knockout, and more Choose the right framework for different types of projects Employ the appropriate libraries and tools in your projects Discover useful JavaScript development tools such as Grunt, Yeoman, Lodash, etc. Who This Book Is For Web developers of all levels of ability; particularly relevant for front-end developers, server-side coders, and developers interestedin learning JavaScript.

Javascript Async

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Author : Ian Elliot
language : en
Publisher:
Release Date : 2017-11-19

Javascript Async written by Ian Elliot and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-19 with categories.

Asynchronous programming is essential to the modern web and at last JavaScript programmers have the tools to do the job - the Promise object and the async and await commands. These are so elegant in their design that you need to know about them if only to be impressed. It is likely that other languages will incorporate similar facilities in the future. While async and await make asynchronous code as easy to use as synchronous code there are a lot of subtle things going on and to really master the situation you need to know about Promises and you need to know how the JavaScript dispatch queue works. Written for experienced JavaScript developers who want to get to grips with the complexities of the language, JavaScript Async guides you through the story of async. It starts with Events, which is where asynchronous programming originates, but it quickly becomes apparent that you need additional ways of dealing with long running tasks. The most basic solution is the callback and this is where async programming starts to become difficult. JavaScript used to be a single-threaded language, but with the introduction of the Web Worker you can write multi-threaded programs. Promises are the pinnacle of async programming in JavaScript and putting them together with the dispatch queue provides further advances. The way that async and await work with Promises is nothing short of amazing. The book concludes with a look at how async and await integrate with some of the latest JavaScript APIs that are based on the Promise object. The Service Worker is possibly the biggest change in the way JavaScript can be used to create programs that are just as happy being offline as online. Working with async can be confusing and disorienting, but by combining code examples and lucid explanations Ian Elliot presents a coherent explanation. If you want to work with async read this book first.

Javascript Design Patterns

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Author : Hugo Di Francesco
language : en
Publisher: Packt Publishing Ltd
Release Date : 2024-03-15

Javascript Design Patterns written by Hugo Di Francesco and has been published by Packt Publishing Ltd this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-03-15 with Computers categories.

Step into the world of design patterns through modern JavaScript paradigms to supercharge your applications on the web and beyond Key Features Explore various JavaScript design patterns, delving deep into their intricacies, benefits, and best practices Understand the decision-making process guiding the selection of specific design patterns Build a solid foundation to learn advanced topics in JavaScript and web performance Purchase of the print or Kindle book includes a free PDF eBook Book DescriptionUnlock 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.

Node Js Design Patterns

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Author : Luciano Mammino
language : en
Publisher: Packt Publishing Ltd
Release Date : 2025-09-25

Node Js Design Patterns written by Luciano Mammino and has been published by Packt Publishing Ltd this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-09-25 with Computers categories.

An essential read for any JavaScript developer - take full advantage of the Node.js platform and build reliable, scalable web applications using design patterns Purchase of the print or Kindle book includes a free eBook in PDF format Free with your book: DRM-free PDF version + access to Packt's next-gen Reader (Email sign-up and proof of purchase required) Key Features Gain a deep understanding of the Node.js philosophy, its core components, and the solutions in its ecosystem Avoid common pitfalls in applying proven patterns to create robust, maintainable Node.js applications Enhance your development skills through a wealth of real-world examples and case studies Book DescriptionNode.js underpins much of modern web development, reliably powering APIs and full-stack apps across all industries. Authors Luciano Mammino and Mario Casciaro offer a practical guide that unpacks the JavaScript runtime so you can write reliable, high-performance Node.js apps. Building on the highly rated third edition, this new edition adds fresh case studies and the latest Node.js developments: newer APIs and libraries, ESM improvements, practical security and production tips, and guidance on using Node.js with TypeScript. It also introduces a new chapter on testing that gives you a full introduction to testing philosophy and practical guidance on writing unit, integration, and end-to-end tests, giving you the confidence to write functional, stable, and reliable code. Real-world, end-to-end examples throughout the book show how to build microservices and distributed systems with Node.js, integrating production-proven technologies such as Redis, RabbitMQ, LevelDB, and ZeroMQ, the same components you’ll find in scalable deployments at companies of all sizes. End-of-chapter exercises consolidate your understanding. By the end of this Node.js book, you’ll have the design patterns, mindset, and hands-on skills every serious Node.js professional needs to confidently architect robust, efficient, and maintainable applications.What you will learn Understand Node.js basics and its async event-driven architecture Write correct async code using callbacks, promises, and async/await Harness Node.js streams to create data-driven processing pipelines Implement trusted software design patterns for production-grade applications Write testable code and automated tests (unit, integration, E2E) Use advanced recipes: caching, batching, async init, offload CPU-bound work Build and scale microservices and distributed systems powered by Node.js Who this book is for This book is for you if you’re a developer or software architect with basic knowledge of JavaScript and Node.js and want to get the most out of these technologies to maximize productivity, design quality, and scalability. It’ll help you level up from junior to senior roles. This book is a tried-and-tested reference guide for readers at all levels. Even those with more experience will find value in the more advanced patterns and techniques presented. You’re expected to have an intermediate understanding of web application development, databases, and software design principles.

Node Js Design Patterns

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Author : Mario Casciaro
language : en
Publisher: Packt Publishing Ltd
Release Date : 2020-07-29

Node Js Design Patterns written by Mario Casciaro and has been published by Packt Publishing Ltd this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-07-29 with Computers categories.

Learn proven patterns, techniques, and tricks to take full advantage of the Node.js platform. Master well-known design principles to create applications that are readable, extensible, and that can grow big. Purchase of the print or Kindle book includes a free eBook in the PDF format. Key Features Learn how to create solid server-side applications by leveraging the full power of Node.js Understand how Node.js works and learn how to take full advantage of its core components as well as the solutions offered by its ecosystem Avoid common mistakes and use proven patterns to create production grade Node.js applications Book DescriptionIn this book, we will show you how to implement a series of best practices and design patterns to help you create efficient and robust Node.js applications with ease. We kick off by exploring the basics of Node.js, analyzing its asynchronous event driven architecture and its fundamental design patterns. We then show you how to build asynchronous control flow patterns with callbacks, promises and async/await. Next, we dive into Node.js streams, unveiling their power and showing you how to use them at their full capacity. Following streams is an analysis of different creational, structural, and behavioral design patterns that take full advantage of JavaScript and Node.js. Lastly, the book dives into more advanced concepts such as Universal JavaScript, scalability and messaging patterns to help you build enterprise-grade distributed applications. Throughout the book, you’ll see Node.js in action with the help of several real-life examples leveraging technologies such as LevelDB, Redis, RabbitMQ, ZeroMQ, and many others. They will be used to demonstrate a pattern or technique, but they will also give you a great introduction to the Node.js ecosystem and its set of solutions.What you will learn Become comfortable with writing asynchronous code by leveraging callbacks, promises, and the async/await syntax Leverage Node.js streams to create data-driven asynchronous processing pipelines Implement well-known software design patterns to create production grade applications Share code between Node.js and the browser and take advantage of full-stack JavaScript Build and scale microservices and distributed systems powered by Node.js Use Node.js in conjunction with other powerful technologies such as Redis, RabbitMQ, ZeroMQ, and LevelDB Who this book is for This book is for developers and software architects who have some prior basic knowledge of JavaScript and Node.js and now want to get the most out of these technologies in terms of productivity, design quality, and scalability. Software professionals with intermediate experience in Node.js and JavaScript will also find valuable the more advanced patterns and techniques presented in this book. This book assumes that you have an intermediate understanding of web application development, databases, and software design principles.

Mastering Asynchronous Javascript Unlock The Secrets Of Expert Level Skills

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Author : Larry Jones
language : en
Publisher: Walzone Press
Release Date : 2025-03-11

Mastering Asynchronous Javascript Unlock The Secrets Of Expert Level Skills written by Larry Jones and has been published by Walzone Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-03-11 with Computers categories.

In today's fast-paced digital world, mastering asynchronous programming in JavaScript is essential for creating responsive, efficient applications. "Mastering Asynchronous JavaScript: Unlock the Secrets of Expert-Level Skills" is meticulously crafted for developers seeking to elevate their expertise and navigate the complexities of modern JavaScript environments. This book offers an in-depth exploration of advanced asynchronous programming techniques, providing readers with the knowledge and tools to build robust, high-performance applications. Dive into the core aspects of asynchronous JavaScript as this book unravels the intricacies of promises, async/await syntax, and event loop management. Through comprehensive chapters, you will gain insight into sophisticated error handling strategies, advanced promise patterns, and seamless integration with APIs. Each page is infused with actionable insights and best practices that will empower you to tackle complex asynchronous tasks with confidence, enhancing both your technical skills and your applications’ efficiency. Whether you're an experienced developer or seeking to specialize in asynchronous programming, "Mastering Asynchronous JavaScript" is your definitive guide. By bridging the gap between foundational knowledge and expert-level techniques, this book ensures you stay ahead of the curve in the ever-evolving landscape of JavaScript development. Transform your understanding of asynchronous programming and harness the full potential of JavaScript's capabilities to deliver impactful applications that stand out in today’s competitive market.

Javascript With Promises

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Author : Daniel Parker
language : en
Publisher: "O'Reilly Media, Inc."
Release Date : 2015-06

Javascript With Promises written by Daniel Parker and has been published by "O'Reilly Media, Inc." this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-06 with Computers categories.

If you're a developer moving to an environments that make heavy use of asynchronous APIs, such as Node, WinRT, or Chrome packaged apps, this book how to make use of Promise constructs. JavaScript routinely supports asynchronous code, setting something up with no expectation of when a response might come back. Unfortunately, writing code in that style is difficult for humans, and Promises are a key set of tools for bridging that gap. This book shows you how to use these tools, and also demonstrates techniques that enable you to use features like IndexedDB or WebRTC. --

Professional Javascript For Web Developers

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Author : Nicholas C. Zakas
language : en
Publisher: John Wiley & Sons
Release Date : 2012-01-18

Professional Javascript For Web Developers written by Nicholas C. Zakas and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-01-18 with Computers categories.

This book provides a developer-level introduction along with more advanced and useful features of JavaScript. Coverage includes: JavaScript use with HTML to create dynamic webpages, language concepts including syntax and flow control statements variable handling given their loosely typed nature built-in reference types such as object and array object-oriented programing powerful aspects of function expressions Browser Object Model allowing interaction with the browser itself detecting the client and its capabilities Document Object Model (DOM) objects available in DOM Level 1 how DOM Levels 2 and 3 augmented the DOM events, legacy support, and how the DOM redefined how events should work enhancing form interactions and working around browser limitations using the canvas tag to create on-the-fly graphics JavaScript API changes in HTML5 how browsers handle JavaScript errors and error handling features of JavaScript used to read and manipulate XML data the JSON data format as an alternative to XML Ajax techniques including the use of XMLHttpRequest object and CORS complex patterns including function currying, partial function application, and dynamic functions offline detection and storing data on the client machine techniques for JavaScript in an enterprise environment for better maintainability This book is aimed at three groups of readers: Experienced object-oriented programming developers looking to learn JavaScript as it relates to traditional OO languages such as Java and C++; Web application developers attempting to enhance site usability; novice JavaScript developers. Nicholas C. Zakas worked with the Web for over a decade. He has worked on corporate intranet applications used by some of the largest companies in the world and large-scale consumer websites such as MyYahoo! and the Yahoo! homepage. He regularly gives talks at companies and conferences regarding front-end best practices and new technology.

Modern Asynchronous Javascript

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Author : Faraz K. Kelhini
language : en
Publisher: The Pragmatic Programmers LLC
Release Date : 2021-12-17

Modern Asynchronous Javascript written by Faraz K. Kelhini and has been published by The Pragmatic Programmers LLC this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-12-17 with Computers categories.

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.