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Angular 2中组件内部的变量

[英]Variable inside of a component in Angular 2

I'll try to explain my question through an example. 我将尝试通过一个例子来解释我的问题。

If I have something like this in my new component: 如果我在新组件中有类似的内容:

    ... implements OnInit {
    constructor( ... ) { }
    variable = "";
    ngOnInit(): void {
      ...
    }

Then I can use my variable inside of the ngOnInit with this. 然后,我可以在ngOnInit中使用我的variable this. , like so: ,就像这样:

this.variable = '1';

But how can I use my variable inside of a child function of the ngOnInit? 但是,如何在ngOnInit的子函数中使用我的变量? For example: 例如:

    ngOnInit(): void {
      ...
      // here I want to use another function with my `variable`
      // something like:
      // myFunc() {
      // this.variable = '2';
      // }
      ...
    }

Thank you. 谢谢。

just use arrow function and you're good as it automatically bind itself to this . 只需使用箭头函数,你会很好,因为它会自动绑定到this

ngOnInit(): void {

  let somefunc: any = () => {
      this.variable = "got here";
  };
}

hope that helps 希望能有所帮助

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