Understanding Javascript Promises
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Understanding JavaScript Promises
Since promises were added to JavaScript in 2015, they have become an integral part of the language. A good understanding of how promises work is more important than ever in becoming a proficient JavaScript developer. This book begins by explaining the basic concepts behind promises, including what they are, how to use them, and how to create your own. You'll then build upon these basic concepts to learn how to chain promises together and how to respond to multiple promises at once. Once you've learned these advanced concepts, you'll move on to learn how promises work with async functions and how to track unhandled promise rejections. All of the concepts discussed are grounded in real world examples so you learn not just how to use a particular technique, but also why and when to use it. It doesn't matter if you're writing JavaScript for web browsers, Node.js, or Deno, this book will teach you everything you need to know about promises.
Mastering JavaScript Promises
Author: Muzzamil Hussain
language: en
Publisher: Packt Publishing Ltd
Release Date: 2015-07-24
JavaScript is a tool for the gurus who create highly useful applications, but it has some limitations. To overcome these limitations, a concept called JavaScript promises is rising rapidly in popularity. Promises makes writing complex logics more manageable and easy. This book starts with an introduction to JavaScript promises and how it has evolved over time. You will learn the JavaScript asynchronous model and how JavaScript handles asynchronous programming. Next, you will explore the promises paradigm and its advantages. Finally, this book will show you how to implement promises in platforms used in project development including WinRT, jQuery, and Node.js.
Decoding JavaScript
Author: Rushabh Mulraj Shah
language: en
Publisher: BPB Publications
Release Date: 2021-05-21
Mastering advanced JavaScript to build modern next-generation web applications. Ê KEY FEATURESÊÊ _ A simplified explanation of complex concepts to create powerful and flexible web applications. _ Learn testing JavaScript code, regular expressions, fetching data, and many more with ES6. _ A full-fledged section dedicated to developing an application using JavaScript. DESCRIPTIONÊ Decoding JavaScript will take the users on an eventful journey of simplifying and understanding advanced concepts of JavaScript. Since JavaScript is the core programming language for almost every interaction on the web, this book will make it easier for readers to develop modern cutting-edge web applications. Ê The book begins with a quick recap of the fundamental JavaScript (JS) concepts like the syntax of JS, data types, operators, conditionals, looping, functions, arrays, objects, and so on. The readers will also explore the handy Chrome DevelopersÕ Tools.ÊÊ This book will also help readers learn and implement important concepts like how to connect to the servers, fetching data like images, user information, videos, etc. from the server, and displaying it on the web page. Besides that, users will learn about impactful concepts like testing JavaScript code, regular expressions, and exploring the popular ES6 and the versions beyond. Most importantly, this book will help you with the best JavaScript practices followed by companies like Google, Facebook, Twitter, etc. to develop a live application right from scratch. WHAT YOU WILL LEARN _ Build dynamic web applications interacting with servers using Vanilla. _ Improve code efficiency by learning advanced concepts of JavaScript. _ Get acquainted with best practices adopted by industry leaders, including Google and Facebook.Ê _ Get access to work with popular libraries like ReactJS, jQuery, Angular, Ember, and Vue. WHO THIS BOOK IS FORÊÊ This book is for aspiring web developers and fairly experienced JavaScript developers who want to create modern web and server applications. Prior knowledge of HTML and CSS is essential to begin with this book. TABLE OF CONTENTS 1. Introduction to JavaScript 2. The DeveloperÕs Tools 3. Functions 4. Arrays 5. Objects 6. ES6 7. Classes 8. Callbacks and Promises 9. AJAX and Interacting with Servers 10. Developing a Live Application! 11. Storing Data in Browsers 12. Debugging and Error Handling 13. Testing and Test Frameworks 14. Regular Expressions 15. Life after ES6 16. Tips and Tricks