assigning a key in object javascript

Question

I am wondering how can do something like this:

Output I am looking for:

{ item_id0 : 123, quantity0: 99 , item_id1 : 124, quantity1: 50 }

My sample code but not working:

var data = {};
angular.forEach(vm.fields, function(value, key){
    data = {
        item_id[key] : vm.selectedItem[key].id,
        quantity[key] : vm.quantity[key]
    }
})
console.log(data);

forEach((elem, id, array) => { // code }) what is it vm.fields? — Artem
– Artem, Commented Apr 8, 2018 at 9:03
Aside from it being a Bad Idea (you should have something more like [{id:123,quantity:99}, {id:124,quantity:50}]) you could probably be better off just doing data['item_id'+key] = vm.selectedItem[key].id; — Niet the Dark Absol
– Niet the Dark Absol, Commented Apr 8, 2018 at 9:03
Is the formatting important? You really want the fields to be named item_id0, quantity0, item_id1, quantity1 and so on? — Schorsch
– Schorsch, Commented Apr 8, 2018 at 9:11
@Artem, it is an object that needed for my input fields. @NiettheDarkAbsol, thank you for that. But when I passing it to parameter it does return null. $http.post('server/add-transaction.php', data).then(function(res){ console.log(res); }) @Schorsch, formating is not really important but I think I need it to pass in my php insert query. — Emjey23
– Emjey23, Commented Apr 8, 2018 at 9:27

NTP · Accepted Answer · 2018-04-08 09:33:42Z

1

You can try the following to obtain data in the format that you need, following code accesses property by its name string and gives it some value.

  $scope.property = {};

  for(i = 0; i< 10;i++){
    $scope.property['item_id'+ i] = i;
    $scope.property['quantity' + i] = i+20;
  }

Demo

answered Apr 8, 2018 at 9:33

NTP

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