I have now written a number of different functions in Google Apps Script that I am using on a growing number of Google Spreadsheets.
Every time I make a small edit to one of these functions I then have to go into each spreadsheet and make the same correction.
Is there a way to “import” the functions to each spreadsheet so that I only have to edit the one “master” function and it is then updated on every spreadsheet?
Google has just release a new feature called Libraries, it is an elegant way to do what you’re asking for. Here is the documentation, read it attentively because it’s a multi-step process.