Increment String Value Google Sheet - google-sheets-macros

Question

Using the following code I cannot increment a value in google sheets to be plus one.
function incrementCellValuesByOne() {
// Increments the values in all the cells in the active range (i.e., selected cells).
// Numbers increase by one, text strings get a "1" appended.
// Cells that contain a formula are ignored.
var ss = SpreadsheetApp.getActiveSpreadsheet();
var activeRange = ss.getActiveRange();
var cell, cellValue, cellFormula;
// iterate through all cells in the active range
for (var cellRow = 1; cellRow <= activeRange.getHeight(); cellRow++) {
for (var cellColumn = 1; cellColumn <= activeRange.getWidth(); cellColumn++) {
cell = activeRange.getCell(cellRow, cellColumn);
cellFormula = cell.getFormula();
// if not a formula, increment numbers by one, or add "1" to text strings
// if the leftmost character is "=", it contains a formula and is ignored
// otherwise, the cell contains a constant and is safe to increment
// does not work correctly with cells that start with '=
if (cellFormula[0] != "=") {
cellValue = cell.getValue();
cellValue =+cellValue
cell.setValue(cellValue + 1);
}
}
}
}
For example "personalDataDOB_3" needs to become "personalDaTaDOB_4" I'm looking for a fast way to do this as right now I need to replace the value by typing.

Answer 1

You want to modify "personalDataDOB_3" of a certain cell to "personalDaTaDOB_4". If my understanding is correct, how about this modification?
Modification points :
When the retrieved "personalDataDOB_3" is converted to the number using cellValue =+cellValue, NaN is returned. So even if 1 was added, the result is NaN.
If the format of strings you want to modify is always "personalDataDOB_#", how about separating the string by _?
In order to reflect above points, please modify your script as follows.
From :
if (cellFormula[0] != "=") {
cellValue = cell.getValue();
cellValue =+cellValue
cell.setValue(cellValue + 1);
}
To :
if (cellFormula[0] != "=") {
cellValue = cell.getValue();
var temp = cellValue.split("_"); // Added
temp[1] = Number(temp[1]) + 1; // Added
cell.setValue(temp.join("_")); // Modified
}
Note :
If the format of strings you want to modify is always changed, please tell me.
If I misunderstand your question, I'm sorry.