JavaScript模块化开发导图

JavaScript modular development revolutionizes how we build scalable and maintainable applications by breaking code into independent, reusable modules. This overview covers core concepts like encapsulation, dependency management, and performance benefits. It traces the historical evolution from fragile global scripts to patterns such as IIFE and Revealing Module, leading to formal specifications: CommonJS, mainly used in Node.js with synchronous loading and module caching, and ES Modules, the modern standard supporting static analysis, tree-shaking, and native browser support. Understanding these systems’ syntax, execution models, strengths, and limitations is essential for effective JavaScript modularization and modern development workflows.

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