如何获取特定的JSON项？

我试图通读这些数据，但我被一些非常基本的东西卡住了。我自己似乎找不到办法。如果有人能帮忙，请告诉我

代码：

输出：

{
  data: [
    {
      timeVal: 'Nov 27, 2020 15:33:24',
      indexName: 'NIFTY 50',
      previousClose: '12,987.00',      
      open: '13,012.05',
      high: '13,035.30',
      low: '12,914.30',
      last: '12,968.95',
      percChange: '-0.14',
      yearHigh: '13,145.85',
      yearLow: '7,511.10',
      indexOrder: '0.00'
    },
    {
      timeVal: 'Nov 27, 2020 15:33:24',
      indexName: 'NIFTY NEXT 50',
      previousClose: '30,186.05',
      open: '30,316.45',
      high: '30,591.00',
      low: '30,121.35',
      last: '30,334.40',
      percChange: '0.49',
      yearHigh: '30,591.00',
      yearLow: '18,384.05',
      indexOrder: '1.00'
    },
    {
      timeVal: 'Nov 27, 2020 15:33:24',
      indexName: 'NIFTY IT',
      previousClose: '21,859.90',
      open: '21,879.15',
      high: '21,972.95',
      low: '21,701.30',
      last: '21,764.90',
      percChange: '-0.43',
      yearHigh: '22,619.00',
      yearLow: '10,991.25',
      indexOrder: '2.00'
    }
  ]
}

我只想得到Nifty50（第一个数组）的结果

将为您提供数组的第一个元素。然后您可以访问如下值：

var time = firstObject['timeVal'] 

或：

---

非常感谢。效果很好。

var firstObject = data['data'][0];

var time = firstObject['timeVal'] 

var time = firstObject.timeVal