从日期数组中获取每周和每月数据的最佳方法是什么？

您需要处理数据并准备通用逻辑以将数据转换为正确的格式。您可以使用groupBy并forEach与reduce方法一起准备数据，如下例所示演示：https ://repl.it/@abhirathore2006/PrepareDataForChartsconst _ = require('lodash');// use your datasetlet data = [  {    "date": "2019-10-28",    "count": 0  },  {    "date": "2019-10-29",    "count": 4  }];// prepare data beforehand to save re-calculationsdata.forEach(d=>{  d.dateObj = new Date(d.date)});// this method will sum all the counts in given groupfunction buildData(data, keyName ){  let result = [];   _.forEach(data, (val, key)=>{    let totalCounts  = val.reduce((acc, curr)=>{        return acc + curr.count;    }, 0)    result.push({[keyName]:key, count:totalCounts})  })  return result;}// this will group data by given output of date methodfunction groupAndBuild(data, dateMethod, groupKey) {  let groupedData = _.groupBy(data, (d)=>{    return d.dateObj[dateMethod]()  })  return buildData(groupedData, groupKey)}// use moment-js or other library to get week number// and replace dateObj with moment objectconsole.log(groupAndBuild(data,'getMonth','month'))

从日期数组中获取每周和每月数据的最佳方法是什么？

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