CODEWITHSUNDEEP
javascriptarraysangularjsobject
J. Perk
J. Perk

Reputation: 45

How to increment a variable when condition is true

I wish to increment variables if a condition is true.

I have a object that has info like

{id: 1, payment: pending}
{id: 2, payment: paid}

Here is what I have done so far:

var currentIndex = 0;
  $scope.unpaid = 0;
  $scope.paid = 0;

  const getSessions = () => {
    loginService.getUser().then((response) => {
      var user_id = response.data.id;
      console.log("getUser returning this => ", response.data);
      loginService.getUserSessions(user_id).then((response) => {
        var sessions = response.data;
        console.log(sessions);
        sessions.forEach(e => e.next_class = e.next_class.substring(0, 10));
        sessions.forEach(function (arrayItem) {
          if(arrayItem.payment === "Pending") {
            $scope.unpaid++;
          }else{
            $scope.paid++;
          };
      });
        $scope.new = sessions;
       Date($scope.class).toISOString().slice(0,10);
      })
    })
  };

  getSessions();

I can loop in the object using the for each, but I want to loop through the object and check the payment key. If payment == pending store in unpaid, and if payment == paid then store in paid.

The front end would show how many unpaid sessions and paid there are displayed in numbers, for example:

Unpaid 1

Paid 1

Upvotes: 1

Views: 315

Answers (1)

tehp
tehp

Reputation: 6394

I am assuming the objects are in an array, I'll also assume it is called payments:

var paid = 0;
var unpaid = 0;

var payments = [{id: 1, payment: 'paid'}, {id: 2, payment: 'unpaid'}, {id: 3, payment: 'unpaid'}];

for (var payment in payments) { // iterate through all payments
    if (payments[payment].payment == 'paid') { // if the person has paid
        paid++; // count a payment
    } else { // if the person hasn't paid
        unpaid++; // count a non-payment
    }
}

console.log("Paid: " + paid + ", Unpaid: " + unpaid);

Also, you should probably make payment a boolean, and call it paid, where true means the person has paid, false means not paid. If you do that, then you can change the if condition to say if (payments[payment].paid) { ... }. Much nicer!

Upvotes: 1

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