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130. What is the difference between modules and standard scripts?

The main difference between modules and standard scripts is how they are loaded and executed.

Standard scripts are loaded and executed synchronously, meaning that they are loaded and executed in the order they appear in the HTML document. This can lead to blocking when scripts are large, and can also cause naming conflicts.

Modules, on the other hand, are loaded and executed asynchronously, and only when they are needed. This can improve the overall performance of the application.

Another difference is that modules have their own scope, which means that variables, functions, and classes declared inside a module are not accessible outside of the module (unless they are explicitly exported).

In terms of syntax, standard scripts are written using the <script> tag, while modules are written using the <script type="module"> tag. Additionally, modules use the export and import statements to expose and consume functionality, respectively.