JavaScript

深入網頁程式語言的世界 JavaScript這項程式語言的強項是讓使用者在網頁裡加入程式，幾乎可以說是現今所有網頁應用程式的核心，從社群媒體網站到瀏覽器上運行的遊戲都有JavaScript的身影。不僅如此，幾乎所有設備都能執行JavaScript，使其成為使用者撰寫通用程式碼的絕佳選擇。 這本經典之作的第四版將帶領各位讀者踏上網頁程式語言的學習之旅，從最基本的程式元素開始，逐步建構令人興味盎然的完整程式。本書作者不吝與讀者分享自身多年來維護熱門開放原始碼專案的親身經驗，融入實務見解和範例，讓書中文字更加生動有趣。 《精通 JavaScript 第四版》的更新焦點會放在深入介紹2024年版的JavaScript，調整某些主題的學習重心，更適切地反映現今的開發實務。 本書採用實務導向的教學方式，將理論深植於大量實例之中，激發讀者的學習動機。前半部分的章節內容會完整介紹程式語言的基礎知識，後半部分的章節則會展示如何在兩種程式開發環境中應用前面學到的知識，分別是：網頁瀏覽器和Node.js。本書還納入五個「實作專案」章節，示範如何開發更大型的程式，以對話口吻的輕鬆方式，引導讀者循序漸進學習。這些實作專案包括：路徑搜尋機器人、小型的程式語言、2D平面遊戲、小畫家程式和簡單的動態網站。 多數章節的結尾都會提出練習題來挑戰各位讀者的創造力，藉此練習運用該章節介紹過的概念和技術。本書另有建置一個學習配套網站，提供互動式環境，協助讀者操作這些練習題，探索書中的範例程式。 本書充滿豐富的啟發內容，不論讀者是想要學習JavaScript的初學者或是打算提升自我程式設計技巧的進階學習者，都能從書中找到激發你思考的亮點。 ※本書程式已更新至2024年版的ECMAScript。

精通全世界最多人使用的程式語言「本書所談論的一切，都是你從未意識到自己會想要知道的JavaScript。它將引領你將JavaScript程式碼品質和生產力帶到更高層次。David對此語言的知識豐富得驚人，非常清楚其錯綜複雜之處以及陷阱所在，這些完全展現在這本JavaScript真正的終極指南之中。」—Schalk Neethling，MDN Web Docs資深前端工程師「David Flanag

這不是一本給初學者的JavaScript教科書。相反地，它是寫給那些已經學過JavaScript卻依然感到卡關，對某些觀念依然模糊的開發者。就像大學課程一樣，或許都是死背答案，考試時題目一變就被當掉了。這時該怎麼辦呢？重修就好。那為什麼要再學一次呢？因為我相信許多人第一次都沒有真的把這些觀念學進去，只是為了應付面試而已，面試結束就忘了。這也合理，因為許多地方都是教你這些知識，卻沒告訴你要用在哪裡。這本書共分成了五個章節，分別是：1. 從重新認識JavaScript開始2. 重要與不重要的資料型別3. 物件與有趣的prototype4. 從scope、closure以及this談底層運作5. 理解非同步每個章節都對應到了一些令初學者很頭痛的話題，而你至少可以找到底下疑問的解答：1. 知道this是什麼要幹嘛？2. 知道[]+{}的結果是重要的嗎？3. Closure到底可以用在哪裡？4. Prototype chain好複雜，為什麼又是prototype又是__proto__？5. 理解Event loop中的microtask可以幹嘛？6. Call by value、call by reference還是call by sharing，重要嗎？7. 我怎麼知道自己學習的東西是不是對的？8. 我學這些知識在實際開發中到底有什麼用？本書不教你死背知識，而是給你一個合理的學習理由，並且藉由實際的案例來帶入這些知識，告訴你為什麼要學習，在開發時又會用在哪裡。有些人會說「以後AI要取代軟體工程師了，還需要學這些嗎？」，如果你現在就打算轉行，那確實不需要了。但我相信AI無法完全取代，還是要有人負責debug跟確認AI寫的東西，並負起責任。當僧多粥少時，誰的硬實力比較強，就有越多的優勢，而這就是在AI時代下繼續學習的理由。在《JavaScript重修就好》這本書中，會秉持著重修的精神，相同的語法、相同的知識，但是為讀者帶來嶄新的體驗，並且發現這些知識背後的關聯以及學習的美好之處。我們會逐個擊破那些JavaScript中的重要概念，更進一步去理解它的原理以及特別之處，還有在實際開發上的應用。

Java權威技術顧問與專業講師 林信良(良葛格)新著作！- 涵蓋ES6到ES11實用特性- 從運用Vanilla JS到打造程式庫- 從XMLHttpRequest、Fetch、SSE到WebSocket- 介紹Web Storage、Indexed Database‧內容涵蓋ES6到ES11，除了基礎語法、物件、原型、類別等的實務運用之外，深入非同步設計、錯誤處理、meta prog

Now in its sixth edition, JAVASCRIPT guides beginning programmers through web application development using the JavaScript programming language. As with previous editions of the book, the authors intr

Now in its fifth edition, JAVASCRIPT guides beginning programmers through Web application development using the JavaScript programming language. As with previous editions of this book, Don Gosselin in

You may have definite ideas about writing code when working alone, but team development requires that everyone use the same approach. With the JavaScript practices in this book -- including code style

That’s right: JavaScript code is testable, despite the lack of unit test standards for this language. With this book, you’ll discover how to devise excellent tests and real-world testing plans for you

If you’re an advanced beginner or intermediate JavaScript developer, JavaScript Enlightenment will solidify your understanding of the language—especially if you use a JavaScript library. In this conci

Expert JavaScript is your definitive guide to understanding how and why JavaScript behaves the way it does. Master the inner workings of JavaScript by learning in detail how modern applications are ma

本書詳細講解了JavaScript的各種方法和使用技巧，讀者可以有系統地掌握JavaScript中的操作、 事件、以及各方面的知識點。主要內容包括JavaScript的概述、基礎核心內容、常規選擇器、 過濾選擇器、事件、JavaScript中的動畫效果、JavaScript的附件機制與開發自己想要的附件等基本內容， 以及其在實際生活中的應用。

Today, JavaScript is used in 89.9% of all websites, including the most heavily-trafficked sites like Google, Facebook, YouTube, and Amazon. That’s why every web developer should know how to use JavaSc

How can you overcome JavaScript language oddities and unsafe features? With this book, you’ll learn how to create code that’s beautiful, safe, and simple to understand and test by using JavaScript’s f

If you’re a programmer who wants to get started with JavaScript, this book is ideal. Each chapter begins by teaching a subset of the language, providing best practices and patterns for working around

改善不良程式碼 「我喜歡這本書的原因是，它系統性地陳述了重構是什麼以及不是什麼。這樣的聚焦觀點，幫助開發者在不改變程式碼行為的前提下提高品質，是每個JS開發者必備的資訊。這本書必讀。」—Kyle Simpson(“getify”) JavaScript 導師 「重構JavaScipt為改進你的JavaScript程式碼指出了清晰的方向。這本書討論重構的工具和技巧，以及如何在不改變程式碼行為的前提下

Get a concise introduction to Jasmine, the popular behavior-driven testing framework for JavaScript. This practical guide shows you how to write unit tests with Jasmine that automatically check for bu

JavaScript is the ubiquitous programming language of the Web, and for more than 15 years, JavaScript: The Definitive Guide has been the bible of JavaScript programmers around the world. This book is a

SummaryThird-Party JavaScript guides web developers through the complete development of a full-featured third-party JavaScript application. You'll learn dozens of techniques for developing widgets tha

JavaScript Programmer's Reference is an invaluable resource that won't stray far from your desktop (or your tablet!). It contains detailed information on every JavaScript object and command, and combi

If you're like most developers, you rely heavily on JavaScript to build interactive and quick-responding web applications. The problem is that all of those lines of JavaScript code can slow down your

Intended for developers familiar with jQuery, this guide explains event handling in JavaScript, constructors for creating objects, prototypes for declaring a method or property, the document object mo

Building rich JavaScript applications that bring a desktop experience to the Web requires moving state from the server to the client side—not a simple task. This hands-on book takes proficient JavaScr

For each problem Goodman addresses, theres a solution or recipe--a focused piece of code that Web developers can insert directly into their applications. The author includes explanations of how and wh

Pro JavaScript Techniques is the ultimate JavaScript book for today's web developer. It provides everything you need to know about modern JavaScript, and teaches you what JavaScript can do for your we

Building JavaScript Games teaches game programming through a series of engaging, arcade-style games that quickly expand your JavaScript and HTML5 skills. JavaScript is in the top ten most-used program

Ideal for professional software developers with a basic understanding of JavaScript, this practical book shows you how to build small, interconnected ES6 JavaScript modules that emphasize reusability.

Tackle two aspects of JavaScript development, modularity and ECMAScript 6 (ES6). With this practical guide, frontend and backend Node.js developers alike will learn how to scale out JavaScript applica

It's a beautifully illustrated full-color JavaScript book that teaches the fundamentals through Metaphors, Analogies and Easy Step-by-Step ExercisesWHO IS THIS JAVASCRIPT BOOK FOR?If you answer YES to

Get a Jump Start on JavaScript today!JavaScript is a key technology in modern web development, enabling you to craft interactive, usable and engaging experiences for your users.In just one weekend wit

With HTML5 and improved web browser support, JavaScript has become the tool of choice for creating high-performance web graphics. This faced-paced book shows you how to use JavaScript, jQuery, DHTML,

The book requires no prior knowledge of JavaScript and works from the ground up to give you a thorough grounding in this powerful language. If you do already know some JavaScript, you will find plenty

This brief book explains the advantages of the object model, inheritance, both classical and prototypical, and shows how these concepts can be implemented in JavaScript. It also shows how object

Take your existing JavaScript skills to the next level and learn how to build complete web scale or enterprise applications that are easy to extend and maintain. By applying the design patterns outlin

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 rout