Check dependencies in your node module.

Depcheck is a tool for analyzing the dependencies in a project to see: how each dependency is used, which dependencies are useless, and which dependencies are missing from package.json.

GitHub: https://github.com/depcheck/depcheck

Simple steps:

1. install tool with:
   npm install -g depcheck
2. go to project directory
3. print dependency report with command:
   depcheck