If you have ever done any work in Google Sheets you might have come across the incredibly useful UNIQUE function. This function can take a single row or multiple rows and generate a list of unique cell values.
Sometime you might have a use case where you need to replicate the UNIQUE functionality in Google Apps Script. … Whatever the case, knowing how to to create a unique array from a 1-dimensional array or a 2-dimensional array is an important part of your toolkit as a coding goat 🐐.
Source: Creating Unique Ranges from 2D Arrays in Google Apps Script – Yagisanatode
Member of Google Developers Experts Program for Google Workspace (Google Apps Script) and interested in supporting Google Workspace Devs.