TypeScript 中的 @ 符号是什么？
[英]What is the @ symbol in TypeScript?
问题描述
Why in components or directives do the metadata or decorators have the @ symbol (eg @Component , @Directive )?
为什么在组件或指令中元数据或装饰器有@符号（例如@Component Component、@ @Directive ）？
What is the purpose of it, and when should I use it?它的目的是什么，我应该什么时候使用它？
1 个解决方案
解决方案1
17 已采纳 2017-02-24 05:33:28
It stands for decorators.它代表装饰器。 It is not TypeScript specific.它不是特定于 TypeScript 的。
Google "javascript decorator" to learn more about it.谷歌“javascript decorator”以了解更多信息。
For example:例如：
http://javascript.info/tutorial/decorators http://javascript.info/tutorial/decorators
https://medium.com/google-developers/exploring-es7-decorators-76ecb65fb841#.jzu13e5lr https://medium.com/google-developers/exploring-es7-decorators-76ecb65fb841#.jzu13e5lr
For up to date information about their standard implementation and when it will finally be released (future ECMAScript versions), see this page: https://github.com/tc39/proposal-decorators有关其标准实现及其最终发布时间（未来的 ECMAScript 版本）的最新信息，请参阅此页面： https ://github.com/tc39/proposal-decorators
And as @hardikModha mentioned, you can also look up the TypeScript handbook: http://www.typescriptlang.org/docs/handbook/decorators.html正如@hardikModha 提到的，您还可以查阅 TypeScript 手册： http ://www.typescriptlang.org/docs/handbook/decorators.html
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