Automatically Replace Dots With Commas In A Google Sheets Column With Google Script


Answer :

  • Select the column you want to change.
  • Goto Edit>Find and Replace

  • In Find area put "."

  • in Replace with area put ","


The error occurs because .replace is a string method and can't be applied to numbers. A simple workaround would be to ensure the argument is always a string, there is a .toString() method for that.

in your code try 

return [row[0].toString().replace(".", ",")];

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