I removed some Java Script files in my project to decrease download size.
But, after that, I was remembered that some of them are necessary. I can’t recover them by Ctrl+Z.
They are exist on old published version.
So I seek the way to download previous published version.
You can’t download previous published versions. What you could do is run a previous build, open the browser console and find your scripts in the console. You can then copy and paste their contents into new files.