Appscript Not Working Across Different Tabs - google-apps-script

Question

I have the below working script but would like to have it working in multiple tabs, instead of having to create several triggers and overload the sheet.
This is the script:
function clearSomeCellsReading () {
const ss = SpreadsheetApp.getActive();
const sh = ss.getSheetByName('Reading');
const sr = 1;
const vs = sh.getRange(sr,21,sh.getLastRow() - sr + 1).getValues().flat();
vs.forEach((e,i) => {
if(e > 29) sh.getRange(i + sr,16,1,3).clearContent();
})
}
Apart from "('Reading')", I have other 20 locations that I would like to incorporate, ie. Bristol, Watford...
All the other tabs are exactly the same to this one, all copies of each other with just different data.
I tried duplicating the script and just changing the tab name but I keep getting errors...
Any help would be greatly appreciated.
Thank you!

Answer 1

I think this might be what you're looking for. If you have some distinct text to identify the Sheets you want to run the procedure on, that would make it dynamic. Otherwise you can specify the exact names of the sheets you want to run it on as shown below.
function allSheetsMacro(){
const ss = SpreadsheetApp.getActiveSpreadsheet();
const theSheetsToInclude = ["Reading","Bristol","Watford"];
const allSheets = ss.getSheets();
for(var i=0;i<allSheets.length;i++){
var aSheet = allSheets[i];
if(theSheetsToInclude.includes(aSheet.getName())){
//or whatever rule to find your sheets.
clearSomeCellsReading_(aSheet);
}
}
}
function clearSomeCellsReading_(sh) {
//original function but being called each time from first function.
const sr = 1;
const vs = sh.getRange(sr,21,sh.getLastRow() - sr + 1).getValues().flat();
vs.forEach((e,i) => {
if(e > 29) sh.getRange(i + sr,16,1,3).clearContent();
})
}

Answer 2

function clearSomeCellsReading () {
const ss = SpreadsheetApp.getActive();
const sh = ss.getActiveSheet();
const sr = 1;
const vs = sh.getRange(sr,21,sh.getLastRow() - sr + 1).getValues().flat();
vs.forEach((e,i) => {
if(e > 29) sh.getRange(i + sr,16,1,3).clearContent();
})
}
or maybe this:
function clearSomeCellsReading() {
const shts = ['Reading', 'others'];
const ss = SpreadsheetApp.getActive();
const sh = ss.getActiveSheet();
if (~shts.indexOf(sh.getName())) {
const sr = 1;
const vs = sh.getRange(sr, 21, sh.getLastRow() - sr + 1).getValues().flat();
vs.forEach((e, i) => {
if (e > 29) sh.getRange(i + sr, 16, 1, 3).clearContent();
})
}
}