Does Google Apps Script support external IDEs?

Question

I am using Google Apps Script and was wondering if I could use any sort of editor outside of the one Google provides. (I purchased Sublime Text and would like to use that.)

The one Google provides is disgusting, with tiny text even though I have a giant screen and syntax colors that I find a bit difficult to distinguish on a white background with small text, and I don't have the beauties of Sublime like tons of custom keyboard shortcuts, all of my packages, etc.

Answer 1

As of today (May 2018), every scripts that you add on Google App Scripts (including scripts on Google Drive like spreadsheets) will get accessible through https://script.google.com and will have a specific id that you can get through the url by opening it.

By using clasp which handle a project (like git), you can do:

clasp clone {id} 

to have your script in a local folder. Then, after editing your file with your favorite text editor, upload it back with :

clasp push 

Answer 2

Google has dropped support for Apps Script inside Eclipse but you can set up a local development environment inside VS Code using the Apps Script Starter kit and CLASP.

Here's a video tutorial to help you get started.