Understanding the functionality of AngularJS UI-Router

I'm trying to wrap my head around the purpose of the parent attribute within the state directive in UI-Router.

Let's consider this code snippet:

$stateProvider
.state('base', {
    abstract: true,
    url: '',
    templateUrl: 'views/base.html'
})
.state('login', {
  url: '/login',
  parent: 'base',
  templateUrl: 'views/login.html',
  controller: 'LoginCtrl'
})

While in the login state, what components from the "base" parent state will be accessible to me? Will I have access to its template, scope, or something else entirely? And how does the abstract attribute of the "base" state come into play?

Answer №1

What is the purpose of the 'abstract' attribute in the "base" state?

The 'abstract' attribute simply designates that state as abstract. An abstract state can have child states but cannot be activated on its own.

Therefore, you cannot use $state.go('base') since it is abstract. An 'abstract' state essentially means it cannot be transitioned to.

When I am within the login state, what elements from the parent "base" state will be available to me?

The login state, being a child state of base, inherits the URL property of its parent as a prefix for its own URL. It also inherits the following from its parent:

Yes, the parent's scope is accessible to its child state. However, no other elements are inherited such as controllers or templates.

Source: Angular ui-router wiki

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