node port already in use code example

Example 1: EADDRINUSE: address already in use

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

Example 2: npm port already in use

$ lsof -i tcp:3000
$ kill -9 PID

Example 3: EADDRINUSE: address already in use :::5000

kill -9 {PID}