How do you import and export modules in JavaScript?

In JavaScript, you can import and export modules using the import and export statements. To export a module, you can use export before a function, variable, or class, or use export default for a single default export. To import a module, you use the import statement followed by the name of the exported module and the path to the module file.

// Exporting a module
export const myFunction = () => {
  /* ... */
};
export default myFunction;

// Importing a module
import { myFunction } from "./myModule";
import myFunction from "./myModule";