March 2017
Intermediate to advanced
821 pages
18h 21m
English
Content preview from JavaScript: Moving to ES2015Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Routing life cycle methods
When a path matches a component, Angular 2 activates the component, and when the path changes, Angular 2 deactivates it. When we say that a component has been activated, it means that Angular 2 has created an instance of the component, that is, called the constructor method of the component, whereas when we say a component has been deactivated, it means the component has been removed from the DOM and instance is deleted.
The methods of a component that are called while activating or deactivating it are called routing lifecycle methods.
Here is the list of routing lifecycle methods:
CanActivate: This hook is invoked before activating the component. It should return a boolean value or a promise indicating whether to activate ...
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