http://www.amazon.com/exec/obidos/tg/detail/-/1590598164/
Book Description
Practical JavaScript, DOM, and Ajax Projects is ideal for web developers already experienced in JavaScript who want to take their knowledge to the next level. It presents ten complete example projects for you to learn from and adapt for use in your own work.
The book starts with a quick recap of the fundamentals of modern JavaScript development before moving right along to the applications. For each application, you are taken through the planning, design, and implementation stages. There's something for everyone here--a utility library, a validation framework, a GUI widget framework, a dynamic event calendar application, a drag-and-drop shopping cart, and more!
Over the course of the book, author Frank Zammetti covers JavaScript best practices, Ajax techniques, and some of the most popular JavaScript libraries, such as Prototype, Script.aculo.us, and the Yahoo YUI. One of the main premises of this book is to help you learn by example so you can then apply your knowledge to your own projects. This book will save you countless hours of development time and help further your JavaScript knowledge!
About the Author
Frank W. Zammetti is a web architect specialist for a leading worldwide financial company by day, and a PocketPC and open-source developer by night. He is the founder and chief software architect of Omnytex Technologies, a PocketPC development house.
He has over 12 years of "professional" experience in the IT field, and over 12 more of "amateur" experience. He began his nearly life-long love of computers at age 7 when he became one of four students chosen to take part in the school district's pilot computer program. A year later, he was the only participant left! The first computer Frank owned was a Timex Sinclair 1000 in 1982, on which he wrote a program to look up movie times for all of Long Island (and without the 16k expansion module!). After that, he moved on to a Commodore 64 and spent about 4 years doing nothing but assembly programming (games mostly). He finally got his first IBM-compatible PC in 1987, and began learning the finer points of programming (as they existed at that time!).
Frank has primarily developed web-based applications for about 8 years. Before that, he developed Windows-based client/server applications in a variety of languages. Frank holds numerous certifications including SCJP, MCSD, CNA, i-Net+, A+, CIW, MCP, and numerous BrainBench certifications. He is a contributor to a number of open source projects, including DataVision, Struts, PocketFrog, and Jakarta Commons. In addition, Frank has started two projects: Java Web Parts and The Struts Web Services Enablement Project. He also was one of the founding members of a project that created the first fully functioning Commodore 64 emulator for PocketPC devices (PocketHobbit).
Frank has authored various articles on topics that range from integrating DataVision into web apps, to using Ajax in Struts-based applications. He is currently working on a new application framework specifically geared to creating next-generation web applications.
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总而言之,这本书带给我的最大价值,在于它帮助我重新审视了Web开发的“根基”。在当前这个充斥着层出不穷的构建工具和高级抽象层的时代,很容易让人遗忘掉浏览器本身是如何工作的。这本书就像一剂清醒剂,将我们拉回到浏览器内核、JavaScript引擎和网络通信的真实世界中去。它没有过多涉及那些依赖于特定库才能实现的炫酷动画或复杂的状态管理模式,而是专注于那些无论技术如何变化,都将作为核心技能被保留下来的知识点。我感觉自己仿佛完成了一次“内力”的修炼,而不是学会了某一套“花架子”招式。那些关于如何高效操作DOM以避免不必要的重绘和回流的章节,是我认为最值得反复研读的部分,它们直接关系到应用的流畅度。这本书的价值在于其“持久性”——它教授的知识体系,远比任何一时的流行框架都要稳定和长久,它真正培养的是一个工程师的“内生驱动力”和解决问题的能力,而非仅仅是一个工具的使用者。
评分这本书的结构布局,对于习惯了碎片化学习的当代读者来说,可能需要一个适应过程。它不是那种一章一个独立小项目的集合,而是遵循着一个清晰的、由浅入深的逻辑链条。从最基本的页面元素获取和修改,到事件流的精细控制,再到异步通信的异步状态管理,每一步都是前一步知识的自然延伸和深化。这种循序渐进的设计,使得学习曲线虽然一开始可能显得略微陡峭,但一旦度过初始阶段,后续的知识点衔接就会变得异常顺畅。我特别欣赏作者在讲解异步编程模式时所采用的类比和图示,它们成功地将回调地狱这类抽象概念具象化,使得原本令人望而生畏的概念变得易于理解和掌握。同时,书中对“项目”的定义似乎更偏向于“功能模块的实现”,而非一个完整的、花哨的应用。这促使我将注意力从最终的视觉效果转移到功能的稳定性和效率上,这对于提升我的职业素养至关重要。这本书不是教你如何快速搭建一个Demo,而是教你如何构建一个经得起时间考验的Web组件。
评分这本书的封面设计给我的第一印象是朴实无华,没有什么花哨的装饰,这让我对它产生了浓厚的兴趣。在深入阅读之前,我本来是期待能看到一些关于最新JavaScript框架如React或Vue的深入探讨,毕竟现在这个领域发展得太快了。然而,这本书的内容似乎将重点放在了更基础、更核心的Web开发技术栈上,这在某种程度上让我感到一丝意外,但随后的阅读体验却让我意识到这种“返璞归真”的策略是多么明智。作者没有急于追逐最新的潮流,而是选择了一条更坚实的地基铺设之路。我们都知道,不论框架如何迭代,底层的DOM操作和异步请求的原理始终是理解现代前端开发的关键。这本书在讲解这些基础知识时,其深度和广度都超出了我的预期。比如,它对事件委托的剖析,不再是简单的API调用说明,而是深入到了浏览器解析和内存管理的层面,这种对细节的执着,对于想要真正掌握JavaScript而不是仅仅停留在“会用”层面的开发者来说,无疑是极大的福音。而且,书中对于Ajax的讲解,也摆脱了仅仅依赖jQuery或Fetch API的表面操作,而是细致地还原了XMLHttpRequest对象从创建到完成的整个生命周期,这对于构建健壮且高性能的Web应用至关重要,它帮助我修正了过去一些基于框架的“黑箱”操作所带来的理解偏差。
评分阅读过程中,我发现作者的语言风格非常注重技术实现的精确性,几乎没有使用任何夸张或情绪化的词汇来描述技术的好处。这种冷静且客观的叙述方式,反而增强了内容的权威性。它更像是一份高质量的技术规范文档,而不是一本市场营销书籍。特别是在处理Ajax请求的错误处理和超时设置部分,作者给出了极其详尽的实践建议,这些建议都是基于多年实战经验的总结,远超出了标准教程所能提供的范畴。例如,书中探讨了在用户网络状态不稳定时,如何设计客户端的请求重试机制,并权衡幂等性问题,这些都是在实际企业级应用开发中必须面对的挑战。我通过这本书,不仅巩固了对HTTP协议的理解,更重要的是,学会了如何在客户端层面构建一个更加“体贴”用户的交互体验,即便是网络延迟或中断的情况下也能保持应用的响应性。这种关注用户体验的底层实现,是这本书给我带来的一个重要思维转变。
评分我必须承认,当我翻开这本书时,我正在寻找那种“立竿见影”的项目快速启动指南,期望能立刻搭建起一个具有现代感的用户界面。然而,这本书的节奏明显要沉稳得多,它更像是一位经验丰富的老教师,耐心地引导你走过每一步的逻辑推导过程,而不是简单地给你一份可以直接复制粘贴的代码模板。这种教学方式的优势在于,它强迫你思考“为什么”要这样做,而不是仅仅满足于“如何”实现。例如,在处理跨浏览器兼容性问题时,作者展示了如何使用一系列策略来优雅地降级或增强功能,而不是依赖于某个封装好的库来掩盖底层差异。这让我深刻体会到,真正的工程能力并非来自于对工具链的熟悉程度,而是对核心技术原理的深刻洞察。书中关于DOM操作的章节,尤其是在处理复杂的文档结构和性能优化时,提供了许多实用的“陷阱”规避技巧,这些技巧往往是那些只学习了新框架的开发者所欠缺的“内功”。它教会了我如何通过更精细的控制来榨取浏览器的性能潜力,而不是盲目地信任框架的默认优化。这种注重底层优化和健壮性的写作风格,使得这本书即使在技术快速更迭的今天,依然保持着极高的参考价值。
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