lib xlsx install

xlsx(SheetJS)()

npm install xlsx

source

let XLSX = require('xlsx')
let workbook = XLSX.readFile('./xls/ex_-01.xlsx')
let input_sheet = workbook.Sheets['input']
let input_json = XLSX.utils.sheet_to_json(input_sheet)
// console.log( input_json )
let ab_path = [];

function getPath(json, folder_id) {
  var tmp1 = json.find((v) => v.FOLDER_ID == folder_id);
  if (!tmp1['PARENT_FOLDER_ID']) {
    console.log(`###### PARENT_FOLDER_ID 空 : FOLDER_ID = ${folder_id} ##############`)
    return;
  }
  parent_id = tmp1['PARENT_FOLDER_ID'];
  var ret = "";
  if (parent_id != -1) {
    //console.log(tmp1['FOLDER_NAME']);
    ab_path.push(tmp1['FOLDER_NAME']);
    return getPath(json, parent_id)
  }
  ab_path.push(tmp1['FOLDER_NAME']);
  ret += '/' + ab_path.reverse().join("/")
  //console.log(ret);
  ab_path = []
  return ret
}
let output_data = [
  ['FOLDER_ID', 'AB_PATH']
];
for (let cl of input_json) {
  var tmp = "###### FOLDER_ID 空 ##############";
  //console.log( `################# ${cl['FOLDER_ID']} #################` )
  if (cl['FOLDER_ID']) {
    tmp = getPath(input_json, cl['FOLDER_ID'])
    console.log(`${cl['FOLDER_ID']}\t` + tmp)
  }
  output_data.push([cl['FOLDER_ID'], tmp]);
}

var output_sheet = "output";
var ws = XLSX.utils.aoa_to_sheet(output_data);
// TODO: remove exist sheet 
if (workbook.Sheets[output_sheet]) {
  //   console.log("remove sheet = " + output_sheet);
  console.log("update sheet = " + output_sheet);
  workbook.Sheets[output_sheet] = ws;
} else {
  /* Add the worksheet to the workbook */
  console.log("add sheet = " + output_sheet);
  XLSX.utils.book_append_sheet(workbook, ws, output_sheet);
}
XLSX.writeFile(workbook, './xls/ex_-01.xlsx', {
  type: 'xlsx'
});

// 「yyyymmdd」形式の日付文字列に変換する関数
function formatDateInYyyymmdd(date) {

  const y = date.getFullYear();
  const m = date.getMonth() + 1;
  const d = date.getDate();

  const yyyy = y.toString();
  const mm = ("00" + m).slice(-2);
  const dd = ("00" + d).slice(-2);

  return yyyy + mm + dd;
}

// 「hhmmss」形式の時刻文字列に変換する関数
function formatDateInHhmmss() {

  const h = date.getHours();
  const m = date.getMinutes();
  const s = date.getSeconds();

  const hh = ("00" + h).slice(-2);
  const mm = ("00" + m).slice(-2);
  const ss = ("00" + s).slice(-2);

  return hh + mm + ss;
}

// 使用例
const date = new Date();
const yyyymmdd = formatDateInYyyymmdd(date);
const hhmmss = formatDateInHhmmss(date);
console.log(yyyymmdd);
console.log(hhmmss);