Question

我一直在努力解决这段代码问题。我正在尝试遍历一个数组（从Google Spreadsheet数据创建）并有条件地将整行数据（基于该行中一个单元格的内容）复制到具有相同列数的新行数组中。然后，我计划将此数组写入电子表格中的匹配范围。

数据数组似乎与[k]作为行索引，[u]作为列索引正常工作。

目前我在运行时看到此错误：TypeError：无法从undefined @此代码行读取属性“0”：targetArray [m] [u] .push（data [k] [u]）;

当我逐步执行这行代码：targetArray [m] [u] .push（data [k] [u]）时，值为m = 0，u = 0，k = 2，i = 5。那么，为什么数据[5] [0]中的数组元素不能写入targetArray [0] [0]？如果那个特定的单元格是空的，那么它仍然应该被复制到数组中，对吗？我不确定“未定义”的来源。目标数组从初始化设置为[]。样本数据数组元素是：[“”，“”，“显示”，“”，1，“A”，“”，“”，“”] - ＆gt; 1行9列。

任何指针？

var sheetArray = ss.getSheets(); //returns an array of all the sheets
var numSheets = sheetArray.length;
var targetArray = [];
var m = 0; //target array counter

for (j = 6; j < numSheets; j++) {

  var data = sheetArray[j].getDataRange().getValues(); //getdatarange -> return the range of the data for the active sheet  // getvalues -> returns 2D array of values for the given range
  var numRows = data.length; //returns the number of rows in the data array
  var numColumns = data[1].length; //returns the number of columns in the 2nd row of the data array

  for (var i = 0; i < numColumns; i++) { //loop through all columns of active sheet   

    if (data[1][i] == "Build Prio [Alpha(A), Beta(B)]") { //check data heading value in each column of Row 2, when column heading matches run next for loop

      for (var k = 0; k < numRows; k++) { //k = row index & i = column index

        if (data[k][i] == 'A') { // check if cell contents are equal to A

          for (var u = 0; u < numColumns; u++) { //loop through all columns in the current row

            targetArray[m][u].push(data[k][u]); //set the value of each column in the current row to the new array                  

          }

          m++; //advances the targetArray row index                            

        }
      }
    }
  }
}

Answer 1

在代码中添加了一些注释。不要在数组中执行m ++和push（）:)

var sheetArray = ss.getSheets(); //returns an array of all the sheets
var numSheets = sheetArray.length;
var targetArray = [];
var m = 0; //target array counter

for (j = 6; j < numSheets; j++) {

  var data = sheetArray[j].getDataRange().getValues(); //getdatarange -> return the range of the data for the active sheet  // getvalues -> returns 2D array of values for the given range
  var numRows = data.length; //returns the number of rows in the data array
  var numColumns = data[1].length; //returns the number of columns in the 2nd row of the data array

  for (var i = 0; i < numColumns; i++) { //loop through all columns of active sheet   

    if (data[1][i] == "Build Prio [Alpha(A), Beta(B)]") { //check data heading value in each column of Row 2, when column heading matches run next for loop

      for (var k = 0; k < numRows; k++) { //k = row index & i = column index

        if (data[k][i] == 'A') { // check if cell contents are equal to A

           //just push the whole row at once:
          targetArray.push(data[k]); //push the whole row in targetarray            

          }
          //no need for m++ since push adds a row.

        }
      }
    }
  }
}

将数据从一个阵列推送到另一个阵列的问

1 个答案: