angular - 如何获取在其外部 "SetTimeout"内部生成的值

Question

我有如下一段代码

setTimeout(()=>{ console.log("TIMED OUT DATA", this.fetchedData['__zone_symbol__value']) },3000);

我想在 setTimeout 之外获取 this.fetchedData['__zone_symbol__value'] 的值。有可能吗？

Answer 1

只需在外部声明并直接引用即可。

赞here, in this working example .

export class App {

  myData = false;

  constructor() {
   this.restart();
  }

  restart(){
    console.log("Changind data to false outside timeout");
    this.myData = false;

    setTimeout(()=>{ 
      console.log("TIMED OUT DATA", this.myData) 
      this.myData = true;
      console.log("TIMED OUT DATA changed", this.myData) 
    },3000);
  }
}