July 2017
Intermediate to advanced
384 pages
8h 23m
English
Content preview from Angular UI Development with PrimeNG
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Lifecycle hooks
Angular components come with lifecycle hooks, which get executed at specific times in the component's life. For this purpose, Angular offers different interfaces. Each interface has a method of the same name as the interface name with the prefix ng. Each method is executed when the corresponding lifecycle event occurs. They are also called lifecycle hook methods. Angular calls the lifecycle hook methods in the following sequence after the constructor has been called:
| The lifecycle hook method | Purpose and timing |
| ngOnChanges | This is called whenever one or more data-bound input properties change. This method is called on initial changes (before ngOnInit) and any other subsequent changes. This method has one parameter--an ... |
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