javascript - adding json to scope in AngularJS -

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i concatenating 2 objects in json , assigning $scope in angularjs. unable same. code given below

//https://wind-bow.hyperdev.space/twitch-api/channels/esl_sc2  /*global variable*/ var responsedata=[]; var responsedatavalues=[]; var twitch = angular.module("twitch",[]);  twitch.controller("liststremers",streamme);  function streamme($scope,$http) {   var streamers=["esl_sc2", "ogamingsc2", "cretetion", "freecodecamp", "storbeck", "habathcx", "robotcaleb", "noobs2ninjas","comster404","brunofin"];    for(var i=0;i<streamers.length;i++)     {       $http({         method:"jsonp",         url:"https://wind-bow.hyperdev.space/twitch-api/streams/"+streamers[i],         params:{              format: 'json',             callback: 'fitdata'         }       });       $http({         method:"jsonp",         url:"https://wind-bow.hyperdev.space/twitch-api/channels/"+streamers[i],         params:{              format: 'json',             callback: 'fitdatavalues'         }       });     }  $scope.twitchdata=makejson(responsedatavalues,responsedata);   $scope.filstatus={};   $scope.clear=function(){     $scope.filstatus={};     console.log($scope);   } }  function fitdata(response)   {      responsedata.push(response);   } function fitdatavalues(response) {   console.log(response);   responsedatavalues.push(response); }  function makejson(arr1,arr2) {    for(var i=0;i<arr1.length;i++)     {        arr1[i].stream=arr2[2].stream;       if(arr1[i].stream==null&&arr1[i].status==404)       {         arr1[i].livestatus="offline";       }       else if(arr1[i].status==404)       {         arr1[i].livestatus="dead";       }       else       {         arr1[i].livestatus="online";       }       //console.log(arr1[i]);       //console.log(arr2[i]);     }   //console.log(arr1);   return arr1; }

in above code in makejson function have create new livestatus,stream property in arr1[i] object , assign value code execute without problem no value assigned arr1 , same assigned $scope in controller. new aj , javascript, please help

this problem because data concatenating, coming http call, asynchronous,before data came through http call, line

 $scope.twitchdata=makejson(responsedatavalues,responsedata);

got executed both blank array. can either promise resole, or simple way make following changes in code : 

function fitdata(response) {     responsedata.push(response);     if(responsedatavalues.length){         $scope.twitchdata=makejson(responsedatavalues,responsedata);     } } function fitdatavalues(response) {    console.log(response);    responsedatavalues.push(response);     if(responsedata.length){         $scope.twitchdata=makejson(responsedatavalues,responsedata);     } }

the http call take more time invoke function call both array having values.


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