listen EADDRINUSE: address already in use :::80 code example

Example 1: Error: listen EADDRINUSE: address already in use :::3000

sudo lsof -i :3000

Example 2: EADDRINUSE: address already in use :::5000

sudo lsof -i :3000

Example 3: Error: listen EADDRINUSE: address already in use :::8080

ps aux | grep node //gets all the nodes and list of PID
kill -9 {PID}

Example 4: Error: listen EADDRINUSE: address already in use :::3000

ps aux | grep node
kill -9 PID

Example 5: error: listen eaddrinuse: address already in use 0.0.0.0:5555

killall -9 node