pythonic way to do something N times without an index variable? [duplicate]
A slightly faster approach than looping on xrange(N) is: import itertools for _ in itertools.repeat(None, N): do_something()
coding-style
Should ‘if’ statement always have an ‘else’ clause? [closed]
Seems like useless typing to me… and a possible cause for confusion. If you don’t need it, don’t put it!
How to customize / style a UIPopoverController
This is possible starting in iOS 5.0 by subclassing the abstract class UIPopoverBackgroundView and assigning your subclass to the popoverBackgroundViewClass property on your UIPopoverController instance. Unfortunately there is no tintColor property as the popover needs to use images for it’s arrow and border in order to achieve smooth animations during dynamic resizing. You can learn … Read more
Switch statement fall-through…should it be allowed? [closed]
It may depend on what you consider fallthrough. I’m ok with this sort of thing: switch (value) { case 0: result = ZERO_DIGIT; break; case 1: case 3: case 5: case 7: case 9: result = ODD_DIGIT; break; case 2: case 4: case 6: case 8: result = EVEN_DIGIT; break; } But if you have … Read more
Why should a function have only one exit-point? [closed]
There are different schools of thought, and it largely comes down to personal preference. One is that it is less confusing if there is only a single exit point – you have a single path through the method and you know where to look for the exit. On the minus side if you use indentation … Read more