100 Advanced Google Apps Script Examples

https://github.com/lsvekis/100-Advanced-Google-Apps-Script-Examples A) Sheets: Performance, Data Ops, Automation (1–25) 1) Batch update with RangeList (fast formatting) Does: Applies formatting to many ranges in one go. 2) Write values + formulas in one pass Does: Sets values and formulas efficiently. 3) Build an index of unique keys → row numbers Does: Creates a lookup map for fast ...