json - 如何从 JSON 选择元素 - Angular 2

Question

我有一个很大的复杂 JSON，我已将其存储在字符串变量中。我只想从中获取特定元素。比如series_id、体育场。

我是 angular2 的新手，所以这让我感到困惑。我是否需要将 JSON 分配给 String 以外的其他变量？如果是的话我应该如何处理？

  "results": {
   "Scorecard": {
    "v": "0",
    "mid": "196230",
    "m": "3",
    "series": {
     "series_id": "12624",
     "series_name": "Indian Premier League, 2017"
    },
    "ecf": "0",
    "place": {
     "vid": "90",
     "stadium": "M.Chinnaswamy Stadium, Bengaluru",
     "city": "Bengaluru",
     "country": "India",
     "Gimaget": "https://s.yimg.com/qx/cricket/fufp/images/venue_90_thumb-29-3-2011-55e03bbb85867160dc7f785dc204e8a4.jpg",
     "date": "20170416143000",
     "enddate": "20170416183000"
    }
}

目前我正在使用以下代码:

export class CricketComponent {
    getData: string;
    ngOnInit() {
        this._cricketService.getScore()
            .subscribe(data => this.getData = JSON.stringify(data));
    }
}

Answer 1

<td>{{getData?.results?.series_id}}</td>

同时删除stringify。只需使用即可

getData: string; ngOnInit() { 
  this._cricketService.getScore()
  .subscribe(data => this.getData = data); 
}