It must have happened to you while writing a form inline validator that you run into a problem. As you type it, the user-agent
keeps sending validation requests to the server. This way you might quickly pollute the network with spawning XHRs. Another sort of problem that you may be familiar with, is that some UI events ( touchmove
, mousemove
, scroll
, and resize
) are fired intensively and subscribed handlers may overload the main thread. These problems can be solved using one of two approaches known as debouncing and throttling. Both functions are available in third-party libraries such as Underscore and Lodash (_.debounce
and _.throttle
). However, they can be implemented with a little o
code and one doesn't need to depend on extra libraries for this functionality.
Javascript Unlocked
Javascript Unlocked
Overview of this book
JavaScript stands bestride the world like a colossus. Having conquered web development, it now advances into new areas such as server scripting, desktop and mobile development, game scripting, and more. One of the most essential languages for any modern developer, the fully-engaged JavaScript programmer need to know the tricks, non-documented features, quirks, and best practices of this powerful, adaptive language.
This all-practical guide is stuffed with code recipes and keys to help you unlock the full potential of JavaScript. Start by diving right into the core of JavaScript, with power user techniques for getting better maintainability and performance from the basic building blocks of your code. Get to grips with modular programming to bring real power to the browser, master client-side JavaScript scripting without jQuery or other frameworks, and discover the full potential of asynchronous coding. Do great things with HTML5 APIs, including building your first web component, tackle the essential requirements of writing large-scale applications, and optimize JavaScript’s performance behind the browser. Wrap up with in-depth advice and best practice for debugging and keeping your JavaScript maintainable for scaling, long-term projects. With every task demonstrated in both classic ES5 JavaScript and next generation ES6-7 versions of the language, Whether read cover-to-cover or dipped into for specific keys and recipes, JavaScript Unlocked is your essential guide for pushing JavaScript to its limits.
Table of Contents (15 chapters)
JavaScript Unlocked
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Free Chapter
Diving into the JavaScript Core
Modular Programming with JavaScript
DOM Scripting and AJAX
HTML5 APIs
Asynchronous JavaScript
A Large-Scale JavaScript Application Architecture
JavaScript Beyond the Browser
Debugging and Profiling
Index
Customer Reviews