node.js callback in a for-loop -

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im trying read data , put multi-array. open different files use for-loop, because need results numbered in correct order. problem:

i cant save data in 1 array. once call function read data, can use result inside function borders. how can make whole array available outside function? (pretty sure messing callbacks).

in other words: trying open multiple files , save content in 1 array [[file1], [file2], ...].

here code:

var einlesen = require ('./einlesen/einlesen.js');  var einzeln = function(arg, callback){   //this function use read data (it works fine, checked separately)     einlesen.einlesen(arg[0], arg[1], arg[2], function(err, output){  //this function opens file, works on content , returns array containing needed data         if (err) { return cb1(err); }         callback(output);     }); }  var daten_einlesen = function (callback){      var tabellenarray = []; //initiating array in whole info should go     var tabelleninfos = [   //this array contains info data should read, need know there 16 files read, rest not important                             ['gvz', '<|>', '1,1,1,0,1,0,0,0,1'],                              ['gzv', ';', '1,1,1,1,1,1,1,1'],                              ['xpg', ';', '1,1,1,1,1'],                              ['abf', ';', '1,1,1,1,1,1,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1'],                              ['gus', '<|>', '1,1,0,1,0,0,0,0,1,1,1'],                              ['xpa', '<|>', '1,1,1'],                              ['alw', '<|>', '1,1,1'],                              ['tal', '<|>', '1,1,1'],                              ['alb', '<|>', '1,1,0,1,1,1,1,1,1'],                              ['zlb', '<|>', '1,1,1'],                              ['xaw', '<|>', '1,1,1'],                              ['sws', ';', '1,1,1,1,1,1,1,1,1,1'],                              ['pro', '<|>', '1,1'],                              ['vbp', '<|>', '1,0,1'],                              ['zvp', '<|>', '1,1,1'],                             ['config', ';', '0,0,1']];      (var = 0; < 3; i++){  //this loop try open files 1 one , input them "tabellenarray"         einzeln(tabelleninfos[i], function(tabelle){             tabellenarray[i] = tabelle; //data saved array lose info onto next step of loop, if put final callback (below) in here loop doesnt work anymore (naturally)         });     }            callback(tabellenarray); }  daten_einlesen(function(piep){ //calling whole function console.log(piep); });

i grateful advice.

nils

try starters:

var pending = 3,complete=0; (var = 0; < pending; i++){  //this loop try open files 1 one    , input them "tabellenarray"     einzeln(tabelleninfos[i], function(tabelle){         tabellenarray[i] = tabelle; //data saved array lose info onto next step of loop, if put final callback (below) in here loop doesnt work anymore (naturally)         if(++complete >= pending){             callback(tabellenarray);         }     }); }

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