I currently have a formula in cell H9 & H10 that is testing certain cells for a Regular Expression with =REGEXMATCH and I would like the above function to run only when there is a TRUE value in these cells. However, I have tried all of the formats below and the function still runs regardless of whether the value is true or false.
function CoordFormat() {
  var ss = SpreadsheetApp.getActive().getSheetByName('FORM');
  var regex1 = ss.getRange('H9')
  var regex2 = ss.getRange('H10')
  var lat = ss.getRange('C20');  
  var long = ss.getRange('C21');
  if (regex1 == true){
    lat.setFormula('=IF(C9>500000,(LEFT($C$9,2)*10000)+(MID($C$9,4,2)*100)+MID($C$9,7,4),"")')
  } else {
    SpreadsheetApp.getUi().alert("Grid Reference is not in DSM format!");
  }
  if (regex2 == true){
    long.setFormula('=IF(C10>500000,(LEFT($C$10,1)*10000)+(MID($C$10,3,2)*100)+MID($C$10,6,2),"")')
  } else {}
}
function CoordFormat() {
  var ss = SpreadsheetApp.getActive().getSheetByName('FORM');
  var regex1 = ss.getRange('H9')
  var regex2 = ss.getRange('H10')
  var lat = ss.getRange('C20');  
  var long = ss.getRange('C21');
  if (regex1){
    lat.setFormula('=IF(C9>500000,(LEFT($C$9,2)*10000)+(MID($C$9,4,2)*100)+MID($C$9,7,4),"")')
  } else {
    SpreadsheetApp.getUi().alert("Grid Reference is not in DSM format!");
  }
  if (regex2){
    long.setFormula('=IF(C10>500000,(LEFT($C$10,1)*10000)+(MID($C$10,3,2)*100)+MID($C$10,6,2),"")')
  } else {}
}
function CoordFormat() {
  var ss = SpreadsheetApp.getActive().getSheetByName('FORM');
  var regex1 = ss.getRange('H9')
  var regex2 = ss.getRange('H10')
  var regex1tr = (regex1 = true)
  var regex2tr = (regex2 = true)
  var lat = ss.getRange('C20');  
  var long = ss.getRange('C21');
  if (regex1tr){
    lat.setFormula('=IF(C9>500000,(LEFT($C$9,2)*10000)+(MID($C$9,4,2)*100)+MID($C$9,7,4),"")')
  } else {
    SpreadsheetApp.getUi().alert("Grid Reference is not in DSM format!");
  }
  if (regex2tr){
    long.setFormula('=IF(C10>500000,(LEFT($C$10,1)*10000)+(MID($C$10,3,2)*100)+MID($C$10,6,2),"")')
  } else {}
}
Not sure whether the format of true is correct and whether it should be bounded by apostrophes or If this would test for a text value?
Any help appreciated!
 
    