Is there a faster way to refresh all of my custom formulas?

Question

I need to refresh all of my custom formulas via a script in Google Sheets but this seems to take forever (like, 30 seconds for 100 cells). There will potentially be thousand

Answer 1

In order to achieve your goal, how about using TextFinder? In this case, I think that the process cost might be able to be reduced. From your script, when TextFinder is used for your situation, it becomes as follows.

Sample script:

function refresher() {
  const sheet = SpreadsheetApp.getActiveSheet();
  const formula = "=myfunc";
  const tempFormula = "=sampleFormula";
  sheet.createTextFinder("^\\" + formula).matchFormulaText(true).useRegularExpression(true).replaceAllWith(tempFormula);
  sheet.createTextFinder("^\\" + tempFormula).matchFormulaText(true).useRegularExpression(true).replaceAllWith(formula);
}

Reference:

• Class TextFinder