express app server . listen all interfaces instead of localhost only

Question

I\'m very new for this stuff, and trying to make some express app

var express = require(\'express\');
var app = express();

app.listen(3000, function(err) {
         


        

Answer 1

From the documentation: app.listen(port, [hostname], [backlog], [callback])

Binds and listens for connections on the specified host and port. This method is identical to Node’s http.Server.listen().

var express = require('express');
var app = express();
app.listen(3000, '0.0.0.0');