角度2:检测从哪个组件服务调用 [英] Angular 2: Detect from which component service is called

问题描述

我有 MyService ，它已注入到 ComponetA 和 ComponetB 中.

I have MyService which is injected into ComponetA and ComponetB.

是否可以找出从哪个组件调用了 MyService.myMethod()?

Is it possible to find out from which component is the MyService.myMethod() called?

@Injectable()
export class MyService {

  public myMethod(): void {
    console.log('called from component: ' + component);
  }
}

推荐答案

唯一的解决方案是使用将传递给调用函数的参数.

Only solution would be to use a parameter which would be passed to the called function.

以前的建议是在此处 a>不起作用，因为它只能在没有严格模式的情况下起作用.

Previous suggestion to refer here would not work because it only works without strict mode.

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