Is it possible to invoke a method beyond a directive's scope?

I am new to using directives in Angular and I have encountered an issue that I need help with. I have a file called common.js which contains the following method:

function showAlert(value) {
   alert(value);
}

Within my directive:

app.directive('ccDecimalinput', function($timeout, $parse){
      var FOCUS_CLASS = "error_tip error";
      var templateOut = '';
    //  console.log('ccDecimalinput ... ');
      return {
        restrict: 'E',
        require: 'ngModel',
        scope : {
            ngModel: '='
        },
        template: '<div ng-form="signup_form"><input type="text" class="maxlength_10_text left_aligned" id="' + attrs.id + '" name="' + attrs.name + '" ng-model="ngModel" required ng-minlength="1" ng-maxlength="10" /></div>',
        replace : true,
        link: function(scope, ele, attrs, c) {
              scope.$watch('ngModel', function() {
                  if (scope.signup_form.$dirty && scope.signup_form.$invalid) {
                      //TODO
                      //I want to use the showAlert method from the common.js file here.
                      //....
                  }
              });
            }
        }
    });

Can anyone assist me with this?

Answer №1

After including the common.js script, you can easily utilize the function as usual since it seems to be globally accessible.

if (scope.signup_form.$dirty && scope.signup_form.$invalid) {
  showAlert('some value');
}

Simply load your script in your HTML like this:

<script src="path/to/common.js"></script>

Furthermore, I'm assuming that's just a demonstration.. It doesn't seem logical to wrap alert() alone. You could directly call alert() without requiring an external function.

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