What you'll learn

Technological growth and complexity have made modular programming essential—but navigating TypeScript’s multiple module systems can be confusing. In this course, TypeScript Deep Dive: Modules, you’ll learn how to create and use all the different module formats supported by TypeScript. First, you’ll begin with an introduction to modules—how they’ve evolved in JavaScript and TypeScript, what defines a module, and when and why to use them. Next, you’ll dive into the fundamentals: declaring modules, importing and exporting code, and understanding the various export patterns available. Then, you'll explore ambient modules—what they are, how they work, and when to apply them. Finally, you’ll discover how TypeScript locates and loads modules locally and how to fine-tune this behavior using compiler configuration options. When you’re finished with this course, you’ll have the skills and knowledge of TypeScript modules needed to confidently architect scalable, maintainable codebases.