JavaScript All-in-One For Dummies

Chapter 12

Using JavaScript Modules

IN THIS CHAPTER

Introducing modules

Creating modules with export

Using modules with import

Giving your module a name

Setting a default export

Loading modules dynamically

Using modules with HTML files

“Divide each difficulty into as many parts as is feasible and necessary to resolve it.”

—RENE DESCARTES

Until now, every JavaScript program you've written has been in a single file, which is fine for small programs and examples. But, in real-life programming, a program may have thousands of lines of code. Keeping everything in a single file in a large program would make your code impossible to maintain.

To keep your code organized, to enable multiple people to work on a project, and to help you think about your code more easily, JavaScript provides a ...