使用打字稿合并对象

Question

在我的角度应用程序中，我的数据如下，

  forEachArrayOne = [
    { id: 1, name: "userOne" },
    { id: 2, name: "userTwo" },
    { id: 3, name: "userThree" }
  ]

  forEachArrayTwo = [
    { id: 1, name: "userFour" },
    { id: 2, name: "userFive" },
    { id: 3, name: "userSix" }
  ]

  newObj: any = {};

  ngOnInit() {
this.forEachArrayOne.forEach(element => {
  this.newObj = { titleOne: "objectOne", dataOne: this.forEachArrayOne };
})

this.forEachArrayTwo.forEach(element => {
  this.newObj = { titleTwo: "objectTwo", dataTwo: this.forEachArrayTwo };
})

console.log({ ...this.newObj, ...this.newObj });


  }

在我的实际应用中，以上是结构，所以请帮助我以同样的方式达到预期的结果..

工作演示https://stackblitz.com/edit/angular-gyched具有上述结构。

这里console.log(this.newObj)给出了最后一个对象，

   titleTwo: "ObjectTwo",
   dataTwo:
     [
       { id: 1, name: "userFour" },
      { id: 2, name: "userFive" },
      { id: 3, name: "userSix" }
     ]

但我想将两者结合起来，并且需要与下面完全一样的结果..

  {
  titleOne: "objectOne", 
  dataOne:
    [
      { id: 1, name: "userOne" },
      { id: 2, name: "userTwo" },
      { id: 3, name: "userThree" }
    ],
  titleTwo: "ObjectTwo",
  dataTwo:
    [
      { id: 1, name: "userFour" },
      { id: 2, name: "userFive" },
      { id: 3, name: "userSix" }
    ]
}

请帮助我实现上述结果..如果我在任何地方有错误，请通过工作示例更正..

Answer 1

您将这两个值都分配给this.newObj，因此它只会覆盖第一个对象。

另外，也不需要你的循环。它没有添加任何东西。

相反，您可以这样做：

this.newObjA = { titleOne: "objectOne", dataOne: this.forEachArrayOne };
this.newObjB = { titleTwo: "objectTwo", dataTwo: this.forEachArrayTwo };
console.log({ ...this.newObjA, ...this.newObjB });

** 编辑 **

在与您讨论过您的要求后，我可以看到不同的解决方案。

在致电componentData 之前，您需要确保您拥有完整的数据。为此，我们可以使用forkJoin 加入基准请求，并将项目请求合并为一个Observable。然后，我们可以订阅 Observable 以获取两者的结果。

代码如下所示：

 createComponent() {
    let benchmarks, projects;
    let form = this.productBenchMarkingForm[0];
    if (form.benchmarking && form.project) {
      benchmarks = form.benchmarking.filter(x => x.optionsUrl)
        .map(element => this.getOptions(element));

      projects = form.project.filter(x => x.optionsUrl)
        .map(element => this.getOptions(element));

      forkJoin(
        forkJoin(benchmarks), // Join all the benchmark requests into 1 Observable
        forkJoin(projects) // Join all the project requests into 1 Observable
      ).subscribe(res => {
        this.componentData({ component: NgiProductComponent, inputs: { config: AppConfig, injectData: { action: "add", titleProject: "project", dataProject: this.productBenchMarkingForm[0] } } });
      })
    }
  }

  getOptions(element) {
    return this.appService.getRest(element.optionsUrl).pipe(
      map((res: any) => {
        this.dataForOptions = res.data;
        element.options = res.data;
        return element;
      })
    )
  }

Here is an example in Stackblitz that logs the data to the console