Recently I had a situation when I needed the ability to take a list of strings and eliminate duplicates.
Now, in all modern languages, this is a built-in capability or data structure – set() in Python, Distinct() in C#, etc.
But InstallScript is too basic for that. Since we need dynamic arrays, all we have to work with is the LIST object. So, after some trial and error, I came up with this piece of code, which is quite efficient; the only downside is that the order of items is not kept – but in my case it didn’t matter.