javascript - 如何使用 groupby 从 JSON 获取数据并使用 lodash 进行过滤

Question

我只需要从 json 文件获取单个数据，我使用 lodash .groupBy 和 .filter 但它只返回错误结果

let insightAverageThroughput = [{
    "insight": "wahahahah",
    "reportMonth": "June 2018",
    "project": "Cambridge Core Dashboard"
  },
  {
    "insight": "aaaaaaa",
    "reportMonth": "February 2018",
    "project": "coreadmin"
  }
];

function filterInsights(data, month, project) {
  let grouped = _.groupBy(data, z => z.project == project)
  console.log(month)
  console.log(project)
  console.log(grouped)
  let filtered = _.filter(grouped[project], x => x.reportMonth == month)
  console.log(filter)
  return filtered.length > 0 && filtered[0].insight;
}

Answer 1

您应该仅按项目而不是按谓词groupBy:

  let grouped = _.groupBy(data, z => z.project)