npm install tcp-port-usedyarn add tcp-port-usedpnpm add tcp-port-used<script src="https://fastly.jsdelivr.net/npm/tcp-port-used"></script><script src="https://unpkg.com/tcp-port-used"></script><script type="module">
import tcpportused from 'https://cdn.jsdelivr.net/npm/tcp-port-used/+esm';
</script><script type="module">
import tcpportused from 'https://cdn.skypack.dev/tcp-port-used';
</script>