Get the total of numbers in jsonobjectArray angular

Question

Hi I'm I really don't know how to add all the numbers when I get the jsonObjectArray I'm using _.map in lodash and angular for each for getting the data in jsonObjectArray

$scope.dataNumbers = _.map(result.numbers);
  angular.forEach($scope.dataNumbers, function(value, key) {
  console.log(value.allNumbers)
})

When I console this is the response (8.17, 32.01, 37.45).

I tried to add them like this Number(value.allNumbers) + Number(value.allNumbers) but the result is (16.34, 64.02 , 74.9)

Sorry for the basic question

Possible duplicate of [How to find the sum of an array of numbers](https://stackoverflow.com/questions/1230233/how-to-find-the-sum-of-an-array-of-numbers) — str, Jun 22 '17 at 07:28

score 2 · Answer 1 · answered Jun 22 '17 at 07:24

2

Use reduce instead

const result = {
    numbers: [8.17, 32.01 , 37.45]
};

const allNumbers = result.numbers.reduce((acc, curr) => {
    return acc + Number(curr);
}, 0);

console.log(allNumbers);

answered Jun 22 '17 at 07:24

Erazihel

7,295
6
30
53

score 1 · Accepted Answer · answered Jun 22 '17 at 07:22

You could save it to a $scope or a global js var

$scope.sumOfNum = 0;
$scope.dataNumbers = _.map(result.numbers);
  angular.forEach($scope.dataNumbers, function(value, key) {
  $scope.sumOfNum += Number(value.allNumbers);
  console.log(value.allNumbers);
  console.log($scope.sumOfNum);
});

score 1 · Answer 3 · answered Jun 22 '17 at 07:23

1

you can use reduce function in javascript ,

var total=$scope.dataNumbers.reduce(function(total,num){
 return total+num
});

answered Jun 22 '17 at 07:23

Srinivas ML

732
3
12

daan.desmedt · Answer 4 · 2017-06-22T07:39:07.680

1

Using angular.forEach to loop the result.numbers and add them

var _total;
angular.forEach(result.numbers, function(value) {
  _total += Number(value);
})
console.log(_total);

Or use reduce

$scope.total = result.numbers.reduce(function(total, curr) {
    return total + curr;
});

edited Jun 22 '17 at 07:39

answered Jun 22 '17 at 07:23

daan.desmedt

3,752
1
19
33

score 1 · Answer 5 · answered Jun 22 '17 at 07:27

1

if you want to calculate the sum of the numbers that are stored in the allNumbers field of $scope.dataNumbers, try

var sum = _.sum(_.map($scope.dataNumbers, 'allNumbers'));

answered Jun 22 '17 at 07:27

Stanislav Lohtin

81
1
6

score 0 · Answer 6 · answered Jun 22 '17 at 07:42

0

Usual way to sum the json object array values

var totalNumbers = 0;
angular.forEach($scope.dataNumbers, function(value, key) {
  totalNumbers += parseInt(value);
});
console.log(totalNumbers);

answered Jun 22 '17 at 07:42

Vivek

1
2

Get the total of numbers in jsonobjectArray angular

6 Answers6