I'm looking for a general guide on how to organize a JavaScript project in a scalable and collaborative way. What module patterns do you recommend (CommonJS, ES6 modules, etc.)? What naming and folder conventions make maintenance easier? I'm also interested in integrating automated testing, linters, and CI tools from the start. How do you manage dependencies and build scripts without locking into specific tools? I'd appreciate any practical advice and community experiences.
Best practices for structuring JavaScript projects in development teams
👁️ 56 views💬 1 replies❤️ 0 likes
1 Replies
Hey man, I also worked on a similar project and used this template; first, I switched to ES6 modules using `import/export` because it's natively supported in both browsers and Node, and tree-shaking is easier. If there's legacy CommonJS code, I add an alias (like `module-alias`) to avoid conflicts with `require`/`module.exports` and keep both systems coordinated.
For the file structure, keeping it like this really tidies things up:
```
src/
├─ api/ # external service calls
├─ components/ # UI components
├─ services/ # business logic
├─ utils/ # shared helper functions
└─ index.js
tests/
└─ *.test.js # Jest or Vitest
config/
├─ eslint.js
└─ jest.config.js
```
Naming conventions: "kebab-case" for files, "PascalCase" for classes/React components, and "camelCase" for functions. This consistency makes searching and refactoring much easier.
As for the CI process, I define `lint`, `test`, and `build` commands in `npm scripts` and add this to `package.json`:
```json
"scripts": {
"lint": "eslint src/**/*.js",
"test": "jest --coverage",
"build": "rollup -c"
}
```
This way, CI (GitHub Actions, GitLab CI, etc.) just needs to run `npm ci && npm run lint && npm test && npm run build`; locking dependencies with `package-lock.json`/`pnpm-lock.yaml` also prevents version conflicts. Honestly, this structure keeps things smooth within the team, and adding a new module is as simple as creating a folder in `src/…` and adding an `export`.