Download | Node.js https://nodejs.org/en/download/
wget https://nodejs.org/dist/v8.11.3/node-v8.11.3.tar.gz
npm https://www.npmjs.com/
What is npm?
Use npm to install, share, and distribute code; manage dependencies in your projects; and share & receive feedback with others.
bower - npm https://www.npmjs.com/package/bower
Bower - A package manager for the web
We don't recommend using Bower for new projects. Please consider Yarn and Webpack or Parcel. You can read how to migrate legacy project here: https://bower.io/blog/2017/how-to-migrate-away-from-bower/
Bower offers a generic, unopinionated solution to the problem of front-end package management, while exposing the package dependency model via an API that can be consumed by a more opinionated build stack. There are no system wide dependencies, no dependencies are shared between different apps, and the dependency tree is flat.
Bower runs over Git, and is package-agnostic. A packaged component can be made up of any type of asset, and use any type of transport (e.g., AMD, CommonJS, etc.).