AngularJS - utilizing the directive $parsing to evaluate an expression and bind it to the scope object

I have set up my isolated directive to receive a string using the @ scope configuration. My goal is to convert this string into an object on the scope, so that I can manipulate its properties and values.

Here's how it looks in HTML:

<div directive model="object.property.property"></div>

And here's the corresponding JavaScript code:

directive('directive', function($parse) {
    scope: {
        model: '@' 
    },
    link: function (scope, elem, attrs) {
        var object = $parse(scope.model);
        object(scope);
        scope.object.property.property = 'newstring';
        // scope.object.property.property = 'newstring';
    }
});

I expected this implementation to assign the value of 'newstring' to object.property.property on the scope.

However, it seems like my usage of the $parse service may be incorrect. Most examples I come across are focused on converting JSON data. How can I correctly utilize $parse to transform this string into an object within the directive's scope?

Thank you for any help!

Answer №1

Does this code meet your needs?

app.directive("mainDir", function($parse) {
  return {
     restrict: 'AE',
     scope: {
       model: '@'
     },
    template: '<div> hello: {{model}} </div>',
    link: function(scope, el, attrs) {
       el.on('click', function(evt) {
           evt.stopPropagation();
           evt.preventDefault();
           var object = $parse(attrs.model);
           scope.$apply(function() {
               object(scope);
           });
           object = 'new string';
           scope.model = object;
       })
  }
 }
})

Usage:

<div main-dir model="object.property.property"></div>

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