Annotation Decorator
Used by Traceur compiler Used by Typescript compiler
Annotation creates the attribute ‘annotations’ that stores arrays and pass metadata to the constructor of the annotated class. It is a function that gets the object that needs to be decorated (or constructed). They can change the attributes of the object as necessary.
Annotations are hard-coded Not hard-coded
Example – import {Component} from 'angular2/angular2'; Example - import {ComponentAnnotation as Component} from 'angular2/angular2';
BY Best Interview Question ON 29 Apr 2019

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