What is the difference between annotation and decorator?

Answer»

Annotation and decorator both have SYMBOL @ but STILL, they have some different language features-

	Annotation	Decorator
1.	These are metadata set on the class using the Reflect Metadata Library.	Decorator correlates to a FUNCTION that is called on the class.
2.	It is used by the Traceur compiler.	It is used by the TYPESCRIPT compiler.
3.	Annotations are hardcoded.	Decorators are not hardcoded.
4.	Annotation Imports: import {ComponentAnnotation as Component} from ‘@angular/core’;	Decorator Imports: import {Component} from ‘@angular/core’;

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