Tommy Cxxx says to Happy Web Developer
var http = require('http'); function getURL(URL) { return new Promise(function(resolve, reject){ http.get(URL, function(res) { resolve(res); }).on('error', function(e) { reject(e); }); }); } var itbilu = getURL('http://itbilu.com'); var yijiebuyi = getURL('http://yijiebuyi.com'); Promise.all([itbilu, yijiebuyi]).then(function(results){ results.forEach(function(result){ console.log(result.statusCode); }); }).catch(function(err){ console.log(err); });