How do you access the directive variable in a controller?

You just create a myVar variable in your controller and pass it to the directive using my-var attribute. Since you are using two way binding, any changes made to myVar by the directive are available in your controller.

How do I access Ngform in controller?

To be able to access the form in your controller, you have to add it to a dummy scope object. Yes, you can access a form in the controller (as stated in the docs). Except when your form is not defined in the controller scope and is defined in a child scope instead.

How do I get parent scope in directive?

You can still access the parent scope using $parent , but this is not normally recommended. Instead, you should specify which parent scope properties (and/or function) the directive needs via additional attributes on the same element where the directive is used, using the = , @ , and & notation.

What is scope parent?

Angular scopes include a variable called $parent (i.e. $scope. $parent ) that refer to the parent scope of a controller. If a controller is at the root of the application, the parent would be the root scope ( $rootScope ). Child controllers can therefore modify the parent scope since they access to it.

What is isolated scope in Angularjs?

Isolated scope directive is a scope that does not inherit from the parent and exist on its own. Scenario: Lets create a very simple directive which will show the object from the parent controller.

What’s the difference between NgForm FormGroup and FormControl?

FormControl and FormGroup in Angular FormGroup is used with FormControl to track the value and validate the state of form control. In practice, FormGroup aggregates the values of each child FormControl into a single object, using each control name as the key.

Why do we use ngSubmit?

The ng-submit Directive in AngularJS is used to specify the functions to be run on submit events. It can be used to prevent the form from submission if it does not contain an action. It is supported by element.

How is scope in directive different from scope in controller?

The directive and its parent(controller/directive inside which it lies) scope is same. So any changes made to the scope variables inside directive are reflected in the parent controller as well. You don’t need to specify this as it is the default.

What are AngularJS directives?

AngularJS is an open-source MVC framework which is very similar to the JavaScript framework. Directives are markers on DOM element which tell Angular JS to attach a specified behavior to that DOM element or even transform the DOM element with its children.

What is controller in AngularJS?

The controller in AngularJS is a JavaScript function that maintains the application data and behavior using $scope object. The ng-controller directive is used to specify a controller in HTML element, which will add behavior or maintain the data in that HTML element and its child elements.