javascript - Node.js concat array after async.concat() -


i have array, need recompile use of edits. of async.concat(), not working. tell me, mistake?

async.concat(dialogs, function(dialog, callback) {     if (dialog['viewer']['user_profile_image'] != null) {         fs.exists(im.pathtouserimage + dialog['viewer']['user_profile_image'].replace('%s', ''), function(exits) {             if (exits) {                 dialog['viewer']['user_profile_image'] = dialog['viewer']['user_profile_image'].replace('%s', '');             }             callback(dialog);         });     } }, function() {     console.log(arguments); });

in opinion, logical. callback invoked after first iteration. how can send data after completion of processing entire array?

thank you!

instead of callback(dialog);, want

callback(null,dialog);

because first parameter callback function error object. reason console.log(arguments) getting called after first iteration because async thinks error occurred.


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