I've done my fair share of work in those languages and it almost never has anything to do with the last line. Typically following back into some stupid === vs

I've done my fair share of work in those languages and it almost never has anything to do with the last line. Typically following back into some stupid === vs. == error or some dynamic typing issue many frames up the call stack. Even C++ is a nightmare to traceback when you use boost/STL heavily