how to find what's running on port 8080 mac code example

Example 1: mac terminal find process by port

sudo lsof -i tcp:3000

Example 2: how to port number of 8080 in macos

$ lsof -i :8080 | grep LISTEN

java    42975 mkyong   57u  IPv6 0xf10ca37d995a077f      0t0  TCP *:http-alt (LISTEN)