ExtJS and internal use

Question

JavaScript

Hello habr, the question arose whether to write a bicycle or not.

Inside the company, the company needed to create a kind of database similar in appearance to a large Excel spreadsheet. Is it possible to use this library (the license assumes non-commercial use, but I don’t even know here) officially?

Answer 1

You can if you make this "base" with a GPL license. GPL v3 allows you to restrict the distribution of a product.

Answer 2

Can. Those who have received a copy of your product will be able to modify its JS part according to GPL v3.