从 JSON 收集数据比在电子表格中循环更快的方法

Question

I am learning Javascript and this is my first time working with Google Sheets Apps Script. What I am doing is taking a large JSON file and importing it into my sheet. After that I am populating a few hundred properties based on the key:value found in the JSON.

This is how it kinda works right now:

1. Go to first column and first row of my sheet.
2. Get the name (property name).
3. Search the JSON for the key and then grab the value.
4. Update a neighbor cell with the value found in the JSON.

Right now it all works the only issue is it seems to be pretty slow. It takes about.5-1 second per lookup and when I have 200+ properties it just seems slow. This might just be a limitation or it might be my logic.

My sheet can be found here: https://docs.google.com/spreadsheets/d/1tt3eh1RjL_CbUIaPzj10DbocgyDC0iNRIba2B4YTGgg/edit#gid=0

My function that does everything:

function parse() {
  var ss = SpreadsheetApp.getActiveSpreadsheet();
  var sheet = ss.getSheets()[0];
  var range = sheet.getRange(2,1);

  var range1 = sheet.getRange("A2");
  var cell = range.getCell(1, 1);

  var event_line = cell.getValue();
  
  var tmp = event_line.split(". ");

  var col_number = tmp[0];
  var event_name = tmp[1];

  event_json = get_json_from_cell(col_number);

  const obj = JSON.parse(event_json);
  var traits = obj.context.traits;
  var properties = obj.properties;



  //Get the range for the section where properties are

  var traits_range = sheet.getRange("contextTraits");
  var allprop = sheet.getRange("testAll");

  var alllen = allprop.getNumRows();

  var length = traits_range.getNumRows();
  
  for (var i = 1; i < length; i++) {
    var cell = traits_range.getCell(i, 1);
    var req = traits_range.getCell(i, 4).getValue();
    var trait = cell.getValue();
    var result = traits[trait];
    var result_cell = traits_range.getCell(i, 3);

    if (result == undefined) {
      if (req == "y"){
        result = "MISSING REQ";
        result_cell.setBackground("red");
      } else {
        result = "MISSING";
        result_cell.setBackground("green");
      }
    } else {
      result_cell.setBackground("blue");
    }
    result_cell.setValue(result);
    Logger.log(result);    
  }

  for (var i = 1; i < alllen; i++) {
    var cell = allprop.getCell(i,1);
    var req = allprop.getCell(i, 4).getValue();
    var prop = cell.getValue();
    var result = properties[prop];
    var result_cell = allprop.getCell(i, 3);

    if (result == undefined) {
      if (req == "y"){
        result = "MISSING REQ";
        result_cell.setBackground("red");
      } else {
        result = "MISSING";
        result_cell.setBackground("green");
      }
    } else {
      result_cell.setBackground("blue");
    }
    result_cell.setValue(result);
  }
  Logger.log(result);


}