javascript - javascript 将嵌套对象带到根级别

Question

我得到了一个如下所示的 json 对象:

{
  "total": 298,
  "max_score": 5.2472496,
  "hits": [
    {
      "_index": "kafkajmx2",
      "_type": "logs",
      "_id": "AVo-VsUdponm9zQGYYS5",
      "_score": 5.2472496,
      "_source": {
        "metric_value_number": 134,
        "path": "/home/usrxxx/logstash-5.2.0/bin/jmxconf",
        "@timestamp": "2017-02-14T20:35:58.266Z",
        "metric_name": "IsrExpandsPerSec.Count",
        "@version": "1",
        "host": "localhost",
        "metric_type": "ReplicaManager",
        "metric_path": "node1.kafka.server:type=ReplicaManager,name=IsrExpandsPerSec.Count",
        "type": null,
        "metric_node": "node1.kafka.server"
      }
    },
    {
      "_index": "kafkajmx2",
      "_type": "logs",
      "_id": "AVo-V69Yponm9zQGYYwS",
      "_score": 5.2472496,
      "_source": {
        "metric_value_number": 134,
        "path": "/home/usrxxx/logstash-5.2.0/bin/jmxconf",
        "@timestamp": "2017-02-14T20:36:58.216Z",
        "metric_name": "IsrExpandsPerSec.Count",
        "@version": "1",
        "host": "localhost",
        "metric_type": "ReplicaManager",
        "metric_path": "node1.kafka.server:type=ReplicaManager,name=IsrExpandsPerSec.Count",
        "type": null,
        "metric_node": "node1.kafka.server"
      }
    }
]
}

我想要做的是将 _source 对象提升到根级别，如下所示:

{
            "metric_value_number": 134,
            "path": "/home/usrxxx/logstash-5.2.0/bin/jmxconf",
            "@timestamp": "2017-02-14T20:36:58.216Z",
            "metric_name": "IsrExpandsPerSec.Count",
            "@version": "1",
            "host": "localhost",
            "metric_type": "ReplicaManager",
            "metric_path": "node1.kafka.server:type=ReplicaManager,name=IsrExpandsPerSec.Count",
            "type": null,
            "metric_node": "aesdp0101.kafka.server"
          },
{
            "metric_value_number": 134,
            "path": "/home/usrxxx/logstash-5.2.0/bin/jmxconf",
            "@timestamp": "2017-02-14T20:35:58.266Z",
            "metric_name": "IsrExpandsPerSec.Count",
            "@version": "1",
            "host": "localhost",
            "metric_type": "ReplicaManager",
            "metric_path": "node1.kafka.server:type=ReplicaManager,name=IsrExpandsPerSec.Count",
            "type": null,
            "metric_node": "aesdp0101.kafka.server"
          }

我不确定如何在 javascript 中本地执行此操作，或者 lodash 中是否也有办法执行此操作...

我尝试过这样做，但我认为 _source 中的 _ 正在影响代码？

      var metricData = [];
      for (var i=0; i < response.length; i++) {

         metricData.push(response[i]._source);
         console.log("metric data: ", metricData);

      };

Answer 1

您是否忘记选择“点击”？

尝试以下操作:

metricData = response.hits.map(hit => hit["_source"])