JSON push to nested JSON object in javascript

Question

I am new to JSON and I am preparing an JSON object on client side from the response received from server. I want the data looks like below

[
 {"number" : "456" , 
  "effort" : [{
    "effort_type" : "A", 
     "act_effort" : 10 },
    {"effort_type" : "B", 
     "act_effort" : 20 }]
 },
 {"number" : "123" , 
  "effort" : [{
    "effort_type" : "A", 
     "act_effort" : 5},
    {"effort_type" : "B", 
     "act_effort" : 30},
     {"effort_type" : "C", 
     "act_effort" : 15}]
 }
]

I am creating this JSON from the response received from server as below

$http.get('/colist').success(function(response) {   
    //console.log ("i GET the data of projects");

            $scope.project = response;
 }

Below is the code to prepare my second json object

 var actEffortData = [];
 var dataSource = $scope.project;
 for(i=0; i<dataSource.length; i++){
    var dupCoFound="N";
    var currentNumber=dataSource[i].number;
    var currentEffort = parseInt(dataSource[i].act_effort); 
    var currentEffortType= dataSource[i].effort_type;
    if(i==0){
       actEffortData.push({ 
           number : currentNumber,
           effort : {
               effort_type:currentEffortType,
               act_effort:currentEffort
           }
       }); 
    } else {
        for(k=0; k < actEffortData.length; k++){
           var dupCEffFound="N";
           if(actEffortData[k].number == currentNumber){
              for(n=0; n < actEffortData[0].effort.length; n++){
                  if(actEffortData[k].effort[n].effort_type == currentEffortType){
                      var currentEffortTemp = actEffortData[k].effort[n].act_effort + currentEffort;
                      actEffortData[k].effort[n].act_effort = currentEffortTemp;
                      dupCEffFound="Y";
                      break;
                  }
              }
              if(dupCEffFound == "N"){
                  var tempActEffort =[];
                  tempActEffort = actEffortData[k].effort;
                  tempActEffort.push({
                      effort_type:currentEffortType,
                      act_effort:currentEffort
                  });  
              }
              dupCoFound = "Y";
              break;
          }
      }
      if (dupCoFound=="N"){
          actEffortData.push({ 
              number : currentNumber,
              effort : {
                  effort_type:currentEffortType,
                  act_effort:currentEffort
              }
          }); 
      }
 }

I am getting an error as below:

 Error: tempActEffort.push is not a function 

Can anyone show me how to achieve this one? Please note that actual code has functionality more than the above one, so you might find redundant variables usage.

Thanks in advance.

Answer 1

I observed one thing in your code at:

var tempActEffort =[];
tempActEffort = actEffortData[k].effort;

Here, you declared a variable 'tempActEffort' as an array.Then you are directly initializing some value as 'tempActEffort = actEffortData[k].effort' to it so that its type got changed from array to resulting type. So, then push is not a function defined on it as it is not an array type at the moment.

So, instead of assigning value as 'tempActEffort = actEffortData[k].effort' change it as:

tempActEffort.push(actEffortData[k].effort);