Learn Enough JavaScript to Be Dangerous: A Tutorial Introduction to Programming with JavaScript

JavaScript plays a key role in modern software development, not only because it is the only language that runs inside virtually all web browsers, but also because it has become widely used for back-end and general-purpose development as well. Although JavaScript is a big language, you don't need to learn "everything" about it to get started, just how to use it efficiently to solve real problems. In Learn Enough JavaScript to Be Dangerous, renowned instructor Michael Hartl teaches the specific concepts, skills, and approaches you need to be professionally productive.

Even if you've never programmed before, Hartl helps you quickly build technical sophistication and master the lore you need to succeed. Treating JavaScript as a general-purpose language right from the start, Hartl offers examples for creating dynamic effects in browsers and for writing scripts and modules using Node.js. Focused exercises help you internalize what matters, without wasting time on details pros don't care about. Soon, it'll be like you were born knowing this stuff--and you'll be suddenly, seriously dangerous.

Learn enough about . . .

• Rapidly deploying a simple JavaScript app to the live Web
• Working with strings and other native JavaScript objects
• Applying functions and elegant, powerful functional-programming techniques
• Creating new objects with both properties and methods
• Writing tests and improving code with test-driven development (TDD)
• Developing and using self-contained, modular NPM software packages
• Adding interactivity with event listeners, dynamic HTML forms, and DOM manipulation
• Writing useful, nontrivial JavaScript shell scripts
• Building an industrial-grade interactive website with JavaScript, from start to finish

Michael Hartl's Learn Enough series includes books and video courses that focus on the most important parts of each subject, so you don't have to learn everything to get started--you just have to learn enough to be dangerous and solve technical problems yourself.

JavaScript在現代軟體開發中扮演著重要的角色，不僅因為它是唯一在幾乎所有網頁瀏覽器中運行的語言，而且還因為它已經廣泛用於後端和通用開發。儘管JavaScript是一個龐大的語言，但你並不需要學習「所有」關於它的知識才能入門，只需要學會如何有效地使用它來解決實際問題。在《學習足夠的JavaScript以成為危險人物》中，著名教師Michael Hartl教授了你在專業上需要的具體概念、技能和方法。

即使你以前從未編程過，Hartl也能幫助你快速建立技術造詣，掌握成功所需的知識。Hartl從一開始就將JavaScript視為通用語言，提供了在瀏覽器中創建動態效果以及使用Node.js編寫腳本和模塊的示例。專注的練習幫助你內化重要知識，而不浪費時間在專業人士不關心的細節上。很快，你將會像生來就懂這些東西一樣，並且你將突然變得非常危險。

學習足夠的JavaScript以成為危險人物，包括以下內容：

- 快速將簡單的JavaScript應用程式部署到實際網頁上
- 使用字符串和其他原生JavaScript對象
- 應用函數和優雅、強大的函數式編程技巧
- 創建具有屬性和方法的新對象
- 使用測試驅動開發（TDD）編寫測試並改進代碼
- 開發和使用自包含、模塊化的NPM軟體包
- 通過事件監聽器、動態HTML表單和DOM操作添加互動性
- 編寫有用的、非平凡的JavaScript shell腳本
- 從頭到尾建立一個工業級的互動式網站

Michael Hartl的Learn Enough系列包括書籍和視頻課程，重點關注每個主題的最重要部分，因此你不需要學習所有內容才能入門，只需要學習足夠的知識以成為危險人物並自己解決技術問題。

Michael Hartl created the legendary Ruby on Rails(TM) Tutorial that helped jumpstart thousands of web development careers. A cofounder and principal author at Learn Enough, Hartl previously earned a Ph.D. in physics at the California Institute of Technology (Caltech), where he received a Lifetime Achievement Award for Excellence in Teaching. He is also an alumnus Harvard University and the world-renowned Y Combinator entrepreneur program.

Michael Hartl創作了傳世的《Ruby on Rails(TM)教程》，幫助啟動了成千上萬個網頁開發職業生涯。Hartl是Learn Enough的聯合創始人和主要作者，之前在加州理工學院（Caltech）獲得物理學博士學位，並因卓越教學而獲得終身成就獎。他也是哈佛大學和世界知名的Y Combinator企業家計劃的校友。