Utilizing AngularJS to implement a Currency Filter on the output of a personalized filter

Question

Utilizing AngularJS to implement a Currency Filter on the output of a personalized filter

I'm currently working on a custom filter that transforms zero values into ' - ' for display purposes. The goal is to display currency formatting for non-zero values. However, I encountered an unexpected token error while trying to implement this filter.

angular.module('app')
        .filter('displaynullcurrency', function(){
            return function(input){
                if(!input){ return ' - '; }
                if(parseFloat(input) != 0){
                    return {{input | currency}};
                }
                return ' - ';
            };
        });

javascript angularjs angular-filters

Answer 1

Answer №1

When incorporating a $filter within a JavaScript function, it is important to follow this syntax: $filter('currency')(input). The format you were previously using is typically reserved for templates. Consider utilizing the following approach instead:

angular.module('app')
        .filter('displaynullcurrency', function($filter){
            return function(input){
                if(!input){ return ' - '; }
                if(parseFloat(input) != 0){
                    return $filter('currency')(input);
                }
                return ' - ';
            };
        });

Answer 2

When incorporating a $filter within a JavaScript function, it is important to follow this syntax: $filter('currency')(input). The format you were previously using is typically reserved for templates. Consider utilizing the following approach instead:

angular.module('app')
        .filter('displaynullcurrency', function($filter){
            return function(input){
                if(!input){ return ' - '; }
                if(parseFloat(input) != 0){
                    return $filter('currency')(input);
                }
                return ' - ';
            };
        });

Answer 3

Answer №2

If you're attempting to pass a value within a directive in a binding statement, remember that this can only be done within your templates.

If you want to display the input value filtered by currency, consider implementing the following approach:

angular.module('app')
  .filter('displaynullcurrency', function($filter) {
    return function (input) {
      if (!input) { return ' - '; }
      if (parseFloat(input) !== 0) {
        return $filter('currency')(input);
      }
      return ' - ';
    };
  });

Answer 4

If you're attempting to pass a value within a directive in a binding statement, remember that this can only be done within your templates.

If you want to display the input value filtered by currency, consider implementing the following approach:

angular.module('app')
  .filter('displaynullcurrency', function($filter) {
    return function (input) {
      if (!input) { return ' - '; }
      if (parseFloat(input) !== 0) {
        return $filter('currency')(input);
      }
      return ' - ';
    };
  });

Utilizing AngularJS to implement a Currency Filter on the output of a personalized filter

Answer №1

Answer №2

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