What are TypeScript modules and how do I use them?

What are TypeScript modules and how do I use them?

TypeScript modules are a way to organize and encapsulate code. They allow you to split your code into separate files and manage dependencies. You can use the import and export keywords to share code between modules.

Can you give me an example of how to create a module?

Sure! To create a module, you can define a file, say math.ts, and export functions like this:

export function add(a: number, b: number): number {
    return a + b;
}

Then, in another file, you can import it:

import { add } from './math';
console.log(add(2, 3)); // Outputs: 5

What are the benefits of using modules in TypeScript?

Using modules helps in organizing code, avoiding global namespace pollution, and improving maintainability. It also enhances code reusability and makes it easier to manage dependencies.

Are there any best practices for structuring TypeScript modules?

Yes! Some best practices include:

1. Keep modules focused on a single responsibility.
2. Use clear and descriptive names for modules and exports.
3. Organize related modules in directories.
4. Avoid circular dependencies.