javascript - Google Apps 脚本：比较数组的唯一值

Question

我正在使用此处提供的解决方案来比较两个数组。提供的示例将在两个数组中找到的值返回给 Array1 ( same)，并将仅在一个或另外两个 Array2 ( diff) 上找到的值返回。

ISSUE：当我将它应用到我自己的脚本时，valuesDATA什么都不返回并valuesCheckSeeding返回两个数组中的所有值

期望的结果：我有两个数组，我想从中创建第三个数组，或者只从第一个数组中选择第二个数组valuesDATA中不存在的值，valuesCheckSeeding. 使用上面的解决方案，我试图将valuesCheckSeedingAND中未找到的所有值valuesDATA推送到valuesDATA.

示例valuesDATA： “U09 F Harford FC Hill/Healey - A MD CMSA Girls Saturday U09 A/B North Premier - Top TID0118”

我究竟做错了什么？我在循环中修改matchfound==false和修改matchfound=true，但这仍然没有给我想要的结果。

最相关的片段

var matchfound = false;

for (var i = 0; i < valuesDATA.length; i++) {
  matchfound=false;
    for (var j = 0; j < valuesCheckSeeding.length; j++) {
      if (valuesDATA[i] == valuesCheckSeeding[j]) {
        valuesCheckSeeding.splice(j, 1);
        matchfound=true;
        continue;
        }
        }
          if (matchfound==false) {
            valuesCheckSeeding.push(valuesDATA[i]);
            valuesDATA.splice(i, 1);
            i=i-1;
            }
          }

根据以下评论/答案编辑的 WORKIG 脚本

//UPDATE SEEDING SHEET
function updateSeedingSheet() {

var today = Utilities.formatDate(new Date(),Session.getScriptTimeZone(), "MM/dd/yyyy hh:mm a");   

//INPUT SHEET INFO
var inputCurrentRow = 4;
var inputCurrentColumn = 20;
var inputNumRows = 1000;
var inputNumColumns =1;

var ssInput = SpreadsheetApp.openById('1Wzg2BklQb6sOZzeC0OEvQ7s7gIQ07sXygEtC0CSGOh4');
var sheetDATA = ssInput.getSheetByName('DATAREF');
var rangeDATA = sheetDATA.getRange(inputCurrentRow, inputCurrentColumn, inputNumRows, inputNumColumns);
var valuesDATA = rangeDATA.getValues();


//SEEDING SHEET INFO
var seedingCurrentRow = 4;
var seedingCurrentColumn = 1;
var seedingNumRows = 1000;
var seedingNumColumns = 1;

var ssSeeding = SpreadsheetApp.openById('1DuCHeZ3zba-nHq-7vYTrylncPGqcA1J9jNyW9DaS3mU');
var sheetSeeding = ssSeeding.getSheetByName('Seeding');
var rangeCheckSeeding = sheetSeeding.getRange(4, 102, 1000, 1);
var columnToClear = sheetSeeding.getRange(seedingCurrentRow, seedingCurrentColumn, seedingNumRows, seedingNumColumns);
var valuesCheckSeeding = rangeCheckSeeding.getValues();


//METHOD TO FILTER
valuesCheckSeeding = valuesCheckSeeding.map(function(e){return e[0];}); //flatten this array
var filteredArr = valuesDATA.filter(function(e){
    return !(this.indexOf(e[0])+1);
},valuesCheckSeeding);
Logger.log(filteredArr);
Logger.log(filteredArr.length);

var rangeSeeding = sheetSeeding.getRange(seedingCurrentRow, seedingCurrentColumn, filteredArr.length, seedingNumColumns);

sheetSeeding.getRange('A1').setValue(today);
columnToClear.clearContent();
rangeSeeding.setValues(filteredArr);



/*
//ALTERNATIVE METHOD USING LOOPS
for (var i = 0; i < valuesDATA.length; i++) {
    for (var j = 0; j < valuesCheckSeeding.length; j++) {
      if (valuesDATA[i][0] == valuesCheckSeeding[j][0]) {
        valuesDATA.splice(i, 1);
        i--; //account for the splice
        break; //go to next i iteration of loop
          }
       }
     }
          Logger.log("VALUES DATA:" + valuesDATA);
          Logger.log("VALUES CHECK SEEDING: " + valuesCheckSeeding);         

//sheetSeeding.getRange('A1').setValue(today);
//rangeSeeding.clearContent();
//rangeSeeding.setValues(valuesDATA); //INCORRECT RANGE HEIGHT, WAS 71 BUT SHOULD BE 1000 - Is splice affecting this? 

*/

}//END FUNCTION

标签： javascriptgoogle-apps-script

Answer 1

V8（ES2016 更新）：

• 您可以使用更新和高效的集合 类

const array1 = [[1],[2],[3]],
array2 = [[1],[3],[4]],
set = new Set(array2.flat())
console.info(array1.filter(e => !set.has(e[0])))
//expected output [[2]]

---

• 您正在检查二维数组。你需要使用[i][0]和[j][0]
• 你可以尝试只拼接valuesDATA

尝试

for (var i = 0; i < valuesDATA.length; i++) {
    for (var j = 0; j < valuesCheckSeeding.length; j++) {
      if (valuesDATA[i][0] == valuesCheckSeeding[j][0]) {
        valuesDATA.splice(i, 1);
        i--; //account for the splice
        break; //go to next i iteration of loop
        }
     }
}
Logger.log(valuesDATA);

---

或者，尝试

valuesCheckSeeding = valuesCheckSeeding.map(function(e){return e[0];}); //flatten this array
var filteredArr = valuesDATA.filter(function(e){
    return !(this.indexOf(e[0])+1);
},valuesCheckSeeding);
Logger.log(filteredArr);