Top Answers

1. Why does NSError need double indirection? (pointer to a pointer)
   79 votes
2. Compile Swift to WebAssembly
   26 votes
3. Is it possible to compare two Objective-C blocks by content?
   13 votes
4. Why use precompiled headers (C/C++)?
   7 votes
5. hasattr() vs try-except block to deal with non-existent attributes
   4 votes