What is directive scope?

The directive scope uses prefixes to achieve that. Using prefixes helps establish a two-way or one-way binding between parent and directive scopes, and also make calls to parent scope methods. To access any data in the parent scope requires passing the data at two places – the directive scope and the directive tag.

What is a structural directive?

Structural directives are responsible for HTML layout. They shape or reshape the DOM’s structure, typically by adding, removing, or manipulating elements. As with other directives, you apply a structural directive to a host element. Each structural directive does something different with that template.

What is directive definition object?

The Directive Definition Object (DDO) tells the compiler how a Directive needs to be assembled. Common properties include the link function, controller function, restrict, template, and templateUrl.

What is the scope of an AngularJS directive?

In an AngularJS directive the scope allows you to access the data in the attributes of the element to which the directive is applied. This is illustrated best with an example:

When to use the scope property in a directive?

When the scope property is used the directive is in the so called “isolated scope” mode, meaning it can not directly access the scope of the parent controller. someString: ‘@’ (passed directly or through interpolation with double curly braces notation { {}})

What does binding mean in a custom directive?

= binding is for two-way model binding. The model in parent scope is linked to the model in the directive’s isolated scope. & binding is for passing a method into your directive’s scope so that it can be called within your directive.

How can I change the parent scope of a directive?

This means any changes to the controller or directive will be in sync. Let’s look at the following fiddle to make it more clear : First, try clicking on the header. We can see that the name gets reversed inside controller Ctrl1 and the directive. Next, change the name inside the textbox; the parent scope is not at all affected.