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Diving Deeper: How Module Loaders ⁤Work

Let's illustrate with a simplified example using a hypothetical module loader. Imagine you have two files: ⁤ moduleA.js and main.js.

moduleA.js:

javascript
function greet(name) {
  return "hello, " + name + "!";
}

export { greet }; // Or module.exports = { greet }; depending on the loader

main.js:

javascript
import { greet } from './moduleA.js'; // Or require('./moduleA').greet;

const message = greet("World");
console.log(message);

Here's what happens behind the scenes:

1. Dependency Resolution: The module loader analyzes main.js and identifies‍ the dependency on moduleA.js.
2. Loading: It fetches moduleA.js.
3. Execution: It executes moduleA.js, making the greet function available.
4. Exporting/Importing: The loader handles the export of greet from `