Get the sum of specific value of object in angularjs

Question

I have this code:

 $scope.showReport = function(datas){
    data.post('dailyReservationReport',{date:$scope.date}).then(function (response){
        $scope.reports = response.data;
        console.log($scope.reports);

        var sum =0;
        for(var index in $scope.reports){
            if($scope.reports[index].departuredate == "2015-03-11"){
              sum += $scope.reports[index].departuredate;
            }
        }
        console.log(sum);

    })
};

The problem I was have is I want to get the sum of data with departure date which is equal to 2015-03-11. I have 2 data so the sum should output 2.

But this is the results in my console.log:

02015-03-112015-03-11

What I did wrong? Please help

you are adding date here not data. try something like this: sum += $scope.reports[index].data or whatever key it has instead of data — Jahongir Rahmonov
– Jahongir Rahmonov, Commented Mar 11, 2015 at 7:31

Sudhir Bastakoti · Accepted Answer · 2015-03-11 07:37:02Z

2

As per the line in your question:: "I have 2 data so the sum should output 2"., i think you just need to increment sum, as:

var sum =0;
for(var index in $scope.reports){
    if($scope.reports[index].departuredate == "2015-03-11"){
        sum++;
    }
}
console.log(sum);

answered Mar 11, 2015 at 7:37

Sudhir Bastakoti

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Comments

Raj · Accepted Answer · 2015-03-11 07:48:44Z

0

We have to use parseInt() because our value stored in var data type it will be in string format, if we are doing addition for this then it will return Concatenation of string , So we have to use parseInt().

var sum =0;
    for(var index in $scope.reports){
        if($scope.reports[index].departuredate == "2015-03-11"){
          sum = parseInt(sum)+parseInt($scope.reports[index].departuredate); -->changed this line
        }
    }

answered Mar 11, 2015 at 7:48

Raj

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Comments

paul · Accepted Answer · 2015-03-11 10:53:14Z

0

You could also count items with a certain departure date using a filter:

$filter('filter')($scope.reports, { 'departuredate': '2015-03-11' }).length

answered Mar 11, 2015 at 10:53

paul

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