What steps are involved in utilizing a custom filter within ng-pluralize based on the count parameter?

<ng-pluralize count="data.amount | customFilter" when="{1: 'one item', 'other': '{} items'}"> </ng-pluralize>

Is it possible to apply a custom filter to the count property? The customFilter function should return either an integer value or a float with 2 decimal places (e.g., 2, not 2.00 or 2.10). The filter should be implemented as follows:

app.filter('customFilter', function() {
  return function(input) {
    input = parseFloat(input);
    if (!Number.isInteger(input)) {
      return input.toFixed(2);
    }
    return input;
  }
}

I keep encountering errors.

Syntax Error: Token '-' is an unexpected token at column 23 of the expression [this.amount | customFilter-0] starting at [-0].

Answer №1

To incorporate a filter in the controller, you can follow these steps:

angular.module("myApp", [])
  .controller("myCtrl", function($scope, $filter) {
    $scope.data = {
      value: 1
    }

    $scope.data.filtered = $filter('myFilter')(2.1)
  })
  .filter('myFilter', function() {
    return function(input) {
      return parseFloat(input).toFixed(2);
    }
  })
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.7.5/angular.min.js"></script>
<div ng-app="myApp" ng-controller="myCtrl">
  <ng-pluralize count="data.value" when="{'1': 'one item', 'other': '{} items'}"> </ng-pluralize><br/>
  <ng-pluralize count="data.filtered" when="{'1': 'one item', 'other': '{} items'}"> </ng-pluralize>

  <pre>{{ data | json }}</pre>
</div>

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