DEVLOG_function.js

function youtubesearch(i) { return function(callback) { youTube.search(tracks[i], 1, function(error, result) { if (error) { console.log(error); } else { callback(null,result.items[0]) } }); }; } function youtube(callback) { // youtubeFuntions --> for --> config var endyoutube = function(err, result) { console.log('end') for(var i = 0; i < result.length; i++) { youtubelist = new Object() youtubelist.videoID = "https://www.youtube.com/embed/"+result[i].id.videoId+"?enablejsapi=1&theme=light&showinfo=0" youtubelist.track = result[i].snippet.title, null, 1 youtubelist.count = count++ youtubelist.tbcell = randomString() youtubelist.iframe = randomString() youtubelist.videoURL = result[i].id.videoId if(arr == 'Youtubearr') config.Youtubearr.push(youtubelist) else config.textdownload.push(youtubelist) } return callback(); }; var youtubeFunctions = []; //2 push youtubesearch function(k) for (var i=0; i < tracks.length; i++) { (function (k) { youtubeFunctions.push(youtubesearch(k)); })(i); } //3 async.parallel youtubeFuncrions --> endyoutube --> callback --> youtube return async.parallel(youtubeFunctions, endyoutube ); } //1 youtube function() youtube( function() { if(arr == 'Youtubearr') res.json({success: true, data:config.Youtubearr}); else res.json({success: true, data:config.textdownload}); console.log('--------------- end youtube'); });