For loops are an essential tool for scripting. In this video, we cover the basics of a for loop in Google Apps Script. source

Learn the basic syntax for using functions and variables in Google Apps Script. source

In part 2 of the sidebar tutorial, we learn how to pass values to and from the html sidebar using Google Apps Script. source

In this tutorial I demonstrate how to create a Google Apps Script library that you can use to keep all of your script in one location. source