javascript - 无法循环 JSON 数据

Question

说到 JSON，我真是个菜鸟。对以下内容的任何帮助都会很棒。

console.log(obj.id);下面的代码在控制台中不返回任何内容 - 我需要了解为什么？我希望它根据 JSON 数据在控制台中记录两件事。

JS:

var matchTeamAStatsJSON

$.ajax({ 
  type: 'GET', 
  url: 'http://www.website.com/apipathblahblahblah',
  data: { get_param: 'value' }, 
  dataType: 'json',        
  success: function (data) {
    matchTeamAStatsJSON = data;
    console.log(matchTeamAStatsJSON);
    for(var i = 0; i < matchTeamAStatsJSON.length; i++) {
      var obj = matchTeamAStatsJSON[i];
      console.log(obj.id);
    }
  }
})

JSON:

{
"records": [
    {
        "id": "recGWUWqwjUNLpekA",
        "fields": {
            "playerSprints": 12,
            "playerDistanceCovered_km": 6.23
        },
        "createdTime": "2018-03-22T18:16:56.000Z"
    },
    {
        "id": "recx5pMFpxnRwR4La",
        "fields": {
            "playerSprints": 12,
            "playerDistanceCovered_km": 6.23
        },
        "createdTime": "2018-03-19T11:35:11.000Z"
    }
]
}

Answer 1

您可以使用Array.prototype.forEach()并执行以下操作:

const data = {"records": [{"id": "recGWUWqwjUNLpekA","fields": {"playerSprints": 12,"playerDistanceCovered_km": 6.23},"createdTime": "2018-03-22T18:16:56.000Z"},{"id": "recx5pMFpxnRwR4La","fields": {"playerSprints": 12,"playerDistanceCovered_km": 6.23},"createdTime": "2018-03-19T11:35:11.000Z"}]};

data.records.forEach(obj => console.log(obj.id));