Why is it wrong to throw er; // Unhandled 'error' event?

[derk]

When the server's work is checked, there's a mistake, why?

Code itself

const http = require('http');
const PORT = 3000;
const server = http.createServer((req, res) => {

console.log('Server request');

});
server.listen(PORT, 'localshost', (error) => {

error ? console.log(error) : console.log('listening port ${PORT}');

});

[shizuka]

You have a seal: localshost instead localhost

Names localshost The computer doesn't know.