A google app script to CLEAR values in a row NB: Dont delete the row

ClearContentsfromRow.gs

function deleteRows() {
  var sheet = SpreadsheetApp.getActiveSheet();
  var values = sheet.getDataRange().getValues();

  values.forEach(function(v, i) {
    // get row index
    var row = i+1;
    // look for required values in cells
    if (v[14] == '' && v[6] == 'PREBOOKED') {
      // might have to modify this line based on Sheets API
      sheet.getRange('D'+row+':P'+row).clearContent();
    }
  });
}