Is it possible to nest a filter within another filter in AngularJS?

After creating a filter to convert my date to time, I decided to name it the official filter "date" of AngularJS.

project.date_created_at and project.mel have different formats, so I needed to create a custom filter for project.date_created_at.

HTML :

<span>{{ project.date_created_at | dateCustom }}</span>
<span>{{ project.mel | date:'dd/MM/yyyy' }}</span>

JS :

myApp.filter('dateCustom', function () {
    return function (input) {

        if(input != undefined) {
            var d = new Date(input);
            var time = d.getTime();
            // use official $filter('date') here ?
        }

    }
});

The desired format is:

date:'dd/MM/yyyy'

Answer №1

To include $filter as a dependency, you can follow the same process as you would for a controller, service, or directive.

myApp.filter('myFilter',[ '$filter', function ($filter) {
    return function (input) {
      /**
         Perform your operations here
      **/
      return $filter('date')(myDate, myFormat);
    }
}]);

Additionally, it is recommended to use angular.isDefined instead of != undefined.

For more information, refer to the documentation for $filter and date.

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