Verify Installation
Check Node.js version
$ node -v
Check npm version
$ npm -v
Check where Node is installed
$ which node

Install on Termux (Android)
Termux: Use nodejs-lts for the most stable Node.js build on Android. One line installs everything โ€” Node.js, npm, and OrinIDE.
One-line install โ€” Node.js LTS + OrinIDE (recommended)
$ pkg update -y && pkg install nodejs-lts -y && npm install -g orin-ide && orin-ide
Install Node.js LTS only
$ pkg install nodejs-lts -y
Update packages first
$ pkg update -y && pkg upgrade -y

Initialize a Project
Initialize with prompts
$ npm init
Initialize with defaults (skip all prompts)
$ npm init -y
Run a JavaScript file with Node
$ node index.js
Run Node.js interactive REPL
$ node