Angular – Data Binding/Services/Dependency Injection

What is the main purpose of services in Angular?

• To style the application.

• To render HTML dom.

• To handle business logic and share data between components.

• To make the application look better.

How to read query params?

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Order the life cycle hooks:
a. `ngOnDestroy`
b. `ngOnChanges`
c. `ngAfterViewInit`
d. `ngOnInit`

Note: Assume the answer is reverse. Then output: `dcba`

What will be the resulting URL?

this.router.navigate(['/home'], { queryParams: { id: '123', name: 'John' } });

• /home&id=123&name=John

• /home/123/John

• /home?id=123&name=John

• /home#id=123&name=John

What are the purposes of the `routerLink` directive in Angular?

• It navigates to a different route when the user clicks on the element.

• It handles HTTP requests to fetch data from a server.

• It updates the browser’s URL based on the specified route.

• It can be used to dynamically set the destination route based on component data.

Which of the following statements correctly describe data binding in Angular?

• Interpolation binds a component's property to an HTML element by using double curly braces, e.g., {{ propertyName }}.

• Property binding binds an HTML element’s text content to a component’s property.

• Event binding lets you bind an event from the HTML element to a method in the component, e.g., (event)="method()".

• Two-way binding is achieved using the ([ngModel] )syntax