address already in use 8080 node code example

Example 1: EADDRINUSE: address already in use

sudo lsof -i :<PORT>
kill -9 <PID>

Example 2: Error: listen EADDRINUSE: address already in use :::9000

step-1 Enter commond to see running ports & processes
ps -ef
step-2 To stop port and processes
sudo kill {PID}