Migrating to Angular 2 (Video 15)

This video tutorial covers the transition from Angular 1 to Angular 2 components. It explains how to upgrade component code, update HTML templates, and understand new syntax changes. The tutorial also demonstrates creating components with input attributes, using annotations, and binding HTML properties. It highlights differences in HTML syntax, such as replacing ng-repeat with ngFor, and introduces the Elvis operator. The video concludes with a look at migrating components and using event emitters for communication in Angular 2.

What is the purpose of the @Input annotation in Angular 2 components?

• To specify input attributes

• To bind CSS styles

• To define output events

• To create a new module

Which Angular 2 directive replaces ng-repeat from Angular 1?

• ngCycle

• ngLoop

• ngFor

• ngEach

What does the Elvis operator (?) in Angular 2 help with?

• Creating components

• Looping through arrays

• Handling null or undefined values

• Binding styles

How do you bind HTML properties to component expressions in Angular 2?

• Using curly braces

• Using square brackets

• Using parentheses

• Using angle brackets

What is the purpose of downgrading an Angular 2 component to an Angular 1 directive?

• To improve performance

• To maintain compatibility with Angular 1

• To enhance security

• To reduce code size

In Angular 2, how are events emitted from a component?

• Using @Input and EventBinder

• Using @Output and EventBinder

• Using @Input and EventEmitter

• Using @Output and EventEmitter

How are event bindings represented in Angular 2 templates?

• Using angle brackets

• Using parentheses

• Using curly braces

• Using square brackets