What is meaning by @ symbol in typescript --Angular 2

Question

I am using typescript for angular 2 application development.

But when we write code for component or route config or some other place we use \"@\" symbol.

My que

Answer 1

This means you are applying a decorator.

With the introduction of Classes in TypeScript and ES6, there now exist certain scenarios that require additional features to support annotating or modifying classes and class members. Decorators provide a way to add both annotations and a meta-programming syntax for class declarations and members. Decorators are a stage 1 proposal for JavaScript and are available as an experimental feature of TypeScript.

• How to implement a typescript decorator?
• https://www.typescriptlang.org/docs/handbook/decorators.html