JavaScript Framework Design (2nd Edition)

JavaScript Framework Design is an original technical work built on the long accumulated experience of front-end developer Zhengmei Situ (Qincheng Zhong). The second edition revises and expands on the first, centering on "how to build a JavaScript framework from scratch" and dismantling layer by layer the invisible foundations inside front-end frameworks. The book has sixteen chapters: starting from the seed module, it discusses modular organization, object extension, array-like conversion, type detection, domReady, and no-conflict handling; then the language module, demonstrating extensions and capability fixes for native types such as strings, arrays, numbers, functions, and dates; next come browser sniffing and feature detection, class factories and various inheritance schemes, selector engines, the node module, the data cache module, the style module, and the attribute module, taking apart the core subsystems of the jQuery era one by one. The event system section covers both desktop and mobile events and specifically analyzes jQuery's event system; the asynchronous model chapter extends to Promises and later async approaches; the data interaction module provides a complete Ajax implementation; animation engines, API design, and pluginization relate to a framework's usability and extensibility. The later sections move into MVVM: static front-end templates, MVVM dynamic templates, the performance wall and complexity wall, and component solutions, with a horizontal comparison of jQuery-era components, avalon2 components, and React components. The first edition was published in 2014 and the second revised in 2017; with three years between them, readers can compare chapter differences across editions.