在Angular 2中使用生命周期接口

Question

这条规则究竟实现了什么？

"use-life-cycle-interface": true,

Answer 1

它只是意味着你必须为你使用的每个生命周期钩子添加implements关键字，

虽然角度识别和使用挂钩不是必需的，但是对于代码清晰度和维护来说要好得多。

示例：

// don't forget the import
import { AfterViewInit } from '@angular/core';
// you have to have this implements statement 
export class YourComponent implements AfterViewInit {
  // if you want to use this hook
  ngAfterViewInit() {
    // your code...
  }
}

Answer 2

它不是内置的tslint规则。它是由codelyzer定义的规则。

GitHub回购有一个视频（我没看过），但文档很少。幸运的是，作者已经实施了测试，因此可以从use-life-cycle-interface rule推断出test descriptions的作用：

it(`should fail, when a life cycle hook is used without implementing it's interface`, ...
it(`should fail, when life cycle hooks are used without implementing their interfaces`,  ...
it(`should fail, when some of the life cycle hooks are used without implementing their interfaces`, ...