They should work exactly the same. Except for one thing...
The recent versions of Qlik Sense and of QlikView are enforcing much more strict and correct use of quotation characters when it comes to literal strings versus search strings in Set Expressions.
In a search string like your e('>0') you should and must use e(">0"). Older versions of both QV and QS didn't mind this and did the search anyway - even if you use the single quotation marks. This is not the case any more.