When using AngularJS for math operations, it may unexpectedly join strings together instead

In my code, I have a standard data structure declared as 

$scope.totals = {storage: 0, dailystorage: 0};
. Specifically, I am using an angular.forEach loop that iterates over each element and adds the value of cam.storage to $scope.totals.storage, aiming to obtain the total storage count.

This is how I am implementing it:

$scope.totals.storage = $scope.totals.storage + cam.storage;

The issue I am encountering is when the values of two instances of cam.storage are, for example, 21.09 and 15.82, the outcome becomes 21.0915.82 instead of their actual sum - treating them as strings rather than numerical values.

How can I ensure the addition operation is performed correctly without concatenating the values together?

javascriptangularjs

Answer №1

Based on the information provided (confirming that $scope.totals is indeed a number), it seems like cam.storage is in string format. To ensure accurate calculations, you should convert it to a number before incorporating it into the current value:

$scope.totals.storage += parseFloat(cam.storage);

Answer №2

When it seems like they are concatenating instead of simply adding, a solution is to ensure that the numbers are being parsed as decimals. The toFixed(int) function can also be utilized to limit the number of decimal places.

$scope.totals.storage = parseFloat($scope.totals.storage) + parseFloat(cam.storage);

Answer №3

For my approach, I incorporate {{(a*1)+(b*1)}} and it effectively solves the problem.

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