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System.currentTimeMillis vs System.nanoTime
...aviour is the result of changing how GetSystemTimeAsFileTime worked in XP vs 7. See here for more details (tl;dr it got more precise since the entire system introduced some more precise timing methods).
– user719662
Jul 18 '17 at 22:08
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Performance of Arrays vs. Lists
...nce will be quite similar.
The overhead that is involved when using a List vs an Array is, IMHO when you add items to the list, and when the list has to increase the size of the array that it's using internally, when the capacity of the array is reached.
Suppose you have a List with a Capacity of 1...
UIViewController viewDidLoad vs. viewWillAppear: What is the proper division of labor?
... bit unclear on the type of tasks that should be assigned to viewDidLoad vs. viewWillAppear : in a UIViewController subclass.
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Rails 4: before_filter vs. before_action
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Private vs Public in Cache-Control
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What is the difference between `sorted(list)` vs `list.sort()`?
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What is the difference between sorted(list) vs list.sort()?
list.sort mutates the list in-place & returns None
sorted takes any iterable & returns a new list, sorted.
sorted is equivalent to this Python implementation, but the CPython builtin function shou...
Choosing a Windows automation scripting language. AutoIt vs Autohotkey [closed]
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community wiki
7 revs, 4 users 71%user4157124
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Haskell composition (.) vs F#'s pipe forward operator (|>)
...s ( >> ) : ('T1 -> 'T2) -> ('T2 -> 'T3) -> 'T1 -> 'T3 vs ( << ) : ('T2 -> 'T3) -> ('T1 -> 'T2) -> 'T1 -> 'T3
– Dobes Vandermeer
Jan 15 '13 at 19:19
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NSUserDefaults removeObjectForKey vs. setObject:nil
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ReactJS state vs prop
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Updating 2016:
React is changed, and explanation "props vs state" became very simple. If a component needs to change data - put it in a state, otherwise in props. Because props are read-only now.
What's the exact difference between props and state?
You can find good explanation ...