Get Selected Row's Specific Col Value via script (Google Sheets) - google-apps-script

Question

I've been trying to get this one to work without success so far.
I need to get the TaskNumber on the first column of the row I'm on and bring it to the destination sheet, so that I can update it there.
I have the following, which I'm tweaking to achieve my goal, but I guess I've bumped into my limitation walls:
function jump() {
var ss = SpreadsheetApp.getActiveSpreadsheet();
var TaskNumberSheet = ss.getSheetByName('To-Do List');
var TaskNoRow = TaskNumberSheet.getActiveCell();
var TaskNoCol = TaskNoRow.getColumn() == 1
var TaskNo = TaskNoCol.getValue;
var sheet = ss.getSheetByName('Updates');
//var Tasks = ss.getSheetByName("To Do List").getActiveRange(Tasks.getColum(1)).getValue();
var values = sheet.getRange("B:B").getValues();
var maxIndex = values.reduce(function(maxIndex, row, index) {
return row[0] === "" ? maxIndex : index;
}, 0);
sheet.setActiveRange(sheet.getRange(maxIndex + 2,2)).setValue(TaskNo);
}
Any help is appreciate.
Cheers,
A

Answer 1

If I understood you correctly, you want to:
Get the value in column A from the currently active row (in sheet To-Do List).
Find the first empty cell in column B (in sheet Updates) (start looking at row #8).
Copy the value that was retrieved in step 1 to the cell retrieved in step 2.
Set the cell retrieved in step 2 as the active cell.
If that's the case, you can do the following:
function jump() {
var ss = SpreadsheetApp.getActive();
// Step 1:
var TaskNumberSheet = ss.getSheetByName('To-Do List');
var TaskNoRow = TaskNumberSheet.getActiveCell().getRow();
var TaskNoCol = 1;
var TaskNo = TaskNumberSheet.getRange(TaskNoRow, TaskNoCol).getValue();
// Step 2:
var sheet = ss.getSheetByName('Updates');
var firstRow = 8;
var column = 2;
var numRows = sheet.getLastRow() - firstRow + 1;
var values = sheet.getRange(firstRow, column, numRows).getValues().map(function(value) {
return value[0]
});
var i = 0;
for (i; i < values.length; i++) {
if (values[i] === "") break;
}
var targetRange = sheet.getRange(i + firstRow, column);
targetRange.setValue(TaskNo); // Step 3
sheet.setActiveRange(targetRange); // Step 4
}

Answer 2

function jump() {
var TargetRow=?;//Fillin target row
var TargetCol=?;//Fillin target column
var ss=SpreadsheetApp.getActive();
var TaskNumberSheet=ss.getSheetByName('To-Do List');
var TaskNoRow=TaskNumberSheet.getActiveCell().getRow();//Getting row from active cell
var TaskNoCol=1
var TaskNo=TaskNumberSheet.getRange(TaskNoRow,TaskNoCol).getValue();
ss.getSheetByName('Updates').getRange(targetRow,targetCol).setValue(TaskNo);
}