Angular JS: Problem with custom directive (directive malfunctioning due to data delay from API)

Here is a unique custom directive created to format numeric values into currency by adding proper punctuations and rounding decimal values.

var customDirectiveApp = angular.module('myApp.roundedValue', []);
  customDirectiveApp.directive('roundedValue', function () {
   return{
    scope: {
      data: '=items'
    },
    template: '<div>$ {{value|number}}</div>',
    link: function(scope){
      scope.value = Math.round(scope.data* 100) / 100;
    }
  };
});

To use the directive, you can do as below:

<div class="overallsummary_meter_txt left">
Total Price<br>
<span rounded-value items="totalPrice" class="orange_txt"></span>
</div>

The challenge faced here is receiving a null value if there's a delay in fetching the numeric value from the API.

How can we prevent the directive from executing until we have a valid value for the variable item?

Attempts with scope.$watch and timeout services have not been fruitful. How can this issue be resolved?

Answer №1

Consider incorporating an ng-if={api data arrives} condition into a directive to prompt Angular to bind the custom directive template solely when the data is present.

<div ng-if={IsDataAvailable} class="overallsummary_meter_txt left">
Total Price<br>
<span rounded-value items="totalPrice" class="orange_txt"></span>
</div>

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