Insert row below based on the column value using google scripts - google-apps-script

Question

I stuck with this. Seems easy at first then I got lost!
What I am aiming for:
to insert a row(s) based on a cell value (Col C) -- insert row(s) below
after a new row(s) is inserted, copy the data from previous row + string value from previous row, removing that value as well from the previous row.
I am trying to use this formula but I got lost...
function addRows(){
var ss = SpreadsheetApp.getActive();
var sheet1 = ss.getSheets()[1];
var dataRange = sheet1.getDataRange();
var dataValues = dataRange.getValues();
for (var i = 0; i<dataValues.length; i++) {
for (var j= 0; j<dataValues.length; i++) {
/* If blank or 0 - zero, skip */
if (dataValues[i][3] == "" || dataValues[i][3]== 0) {continue;}
/* If value is >=1, insert new row(s) below the active row */
if (dataValues[i][3] >=1) {
sheet1.insertRowAfter(i);
sheet1.getRange(...) // copy the data from previous + string
}
}
}
}

Answer 1

In your shared Spreadsheet, you want to convert from the values of "A2:B3" to the values of "A6:B11".
In your shared image, you want to achieve as follows.
From
Data1 A0HD, B0DP
Data2 C12X, D0B1, E2C1, F6H1
To
Data1 A0HD
Data1 B0DP
Data2 C12X
Data2 D0B1
Data2 E2C1
Data2 F6H1
You want to achieve this using Google Apps Script.
I could understand like above. If my understanding is correct, how about this answer? Please think of this as just one of several possible answers.
Sample script:
In order to test the script, please use the following script to your shared Spreadsheet. And run the script.
function myFunction() {
var sourceSheetName = "Sheet6";
var destinationSheetName = "Sheet6";
var ss = SpreadsheetApp.getActiveSpreadsheet();
var sheet = ss.getSheetByName(sourceSheetName);
// Retrieve source values.
var values = sheet.getRange("A2:B3").getValues();
// Convert values.
var result = values.reduce(function(ar, [a, b]) {
var temp = b.split(",");
for (var i = 0; i < temp.length; i++) {
ar.push([a, temp[i].trim()]);
}
return ar;
}, []);
// Put values.
var dstSheet = ss.getSheetByName(destinationSheetName);
dstSheet.getRange(dstSheet.getLastRow() + 1, 1, result.length, result[0].length).setValues(result);
}
In above script, when the script is run, the values of "A2:B3" from the "Sheet6" are retrieved and the converted values are put to the last row of "Sheet6".
If only input values are put to the source sheet, you can also use var values = sheet.getRange(2, 1, sheet.getLastRow() - 1, 2).getValues(); instead of var values = sheet.getRange("A2:B3").getValues();.
Note:
This is a simple sample script. So please modify this for your actual Spreadsheet.
Reference:
reduce()