Google Sheets Add row based on cell number value

Question

I'm trying to make a google sheet script that adds a row based on cell value, basically if I have in the Quantity (Column D) 7x laptops, I want the script to add 6 additional rows below if Column H is marked as "Yes" through data validation.

What I was able to find and to do is only duplicate that row but is without data validation and I would prefer to add the data validation and possible make each quantity split to 1 (instead of 7) after the duplication.

`function autoDup() {
      var sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
      var data = sheet.getDataRange().getValues();
     var newData = [];
     for(var n in data){
       newData.push(data[n]);
    if(!Number(data[n][3])){continue};// if column 3 is not a number then do nothing
      for(var c=1 ; c < Number(data[n][3]) ; c++){ // start from 1 instead of 0 because we have already 1 copy
      newData.push(data[n]);//store values
    }
  }
  sheet.getRange(1,1,newData.length,newData[0].length).setValues(newData).sort({column: 1, ascending: false});// write new data to sheet, overwriting old data
}`

Hope someone is able to help me. Thank you,

Answer 1

Column D contains a qty and goods description. If Column H = "Yes", you want to insert a number of rows below Col D equal to the qty minus one. If Column H <> "Yes, then take no action.

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Sample data - Before

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Sample data - After

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function so5925663201() {

  var ss = SpreadsheetApp.getActiveSpreadsheet();
  var sheetname = "59256632";
  var sheet = ss.getSheetByName(sheetname);

  var row = 7;

  // get value of Column H
  var colHValue = sheet.getRange(row,8).getValue();

  if (colHValue === "Yes"){
    //Logger.log("DEBUG: Col H = yes. do something")

    // get value of Column D
    var Value = sheet.getRange(row,4).getValue();
    var searchterm = "x";
    var indexOfFirst = Value.indexOf(searchterm);
    //Logger.log("DEBUG: the first instance of 'x' is "+indexOfFirst);

    // get the quantity and convert from a string to a number
    var qty = Value.substring(0, indexOfFirst);
    var qtynum = +qty;
    // var newtype = typeof qtynum; // DEBUG
    //Logger.log("DEBUG: the quantity is "+qtynum+", new type = "+newtype)

    // This inserts rows after 
    sheet.insertRowsAfter(row, qtynum-1);
  }
  else{
    //Logger.log("DEBUG: col H <> Yes. do nothing");
  }
}