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JavaScript inheritance: Object.create vs new
... function and I think the code above describes what Object.create actually does. Hope it'll help in some way.
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How do I abort the execution of a Python script? [duplicate]
...m, so try statements and cleanup code can execute. The os._exit() version doesn't do this. It just ends the program without doing any cleanup or flushing output buffers, so it shouldn't normally be used.
The Python docs indicate that os._exit() is the normal way to end a child process created w...
Get the name of an object's type
...or property check.
Using the name property of the constructor property...
Does not work AT ALL in many cases
Again, see above; it's quite common for constructor to be utterly and completely wrong and useless.
Does NOT work in <IE9
Using myObjectInstance.constructor.name will give you a string co...
Why use AJAX when WebSockets is available?
..., etc.
On the other hand, if you are creating a new application that just doesn't work well within the latency and connection constraints of HTTP/Ajax/Comet, then consider using WebSockets.
Also, some answers indicate that one of the downsides of WebSockets is limited/mixed server and browser sup...
Changing Ctrl + Tab behavior for moving between documents in Visual Studio
...ested this in VS 2012, and the Window.PreviousTab shortcut (Ctrl+Alt+PgUp) doesn't work if you're on a Razor view (.cshtml file). Very annoying, although Ctrl+Alt+PgDown still works so you're not completely stuck. There's also Window.NextDocumentWindow (Ctrl+F6) although that seems to cycle tabs in ...
nonlocal keyword in Python 2.x
...tead of the dictionary. I find it much more elegant and readable since it does not flood the code with literals (dictionary keys), plus you can make use of methods.
– Alois Mahdal
Aug 15 '13 at 13:19
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How can I reliably determine the type of a variable that is declared using var at design time?
...s that it's a System.Char[]. Super. So we have a type for y.
Now we ask "does System.Char[] have a method Where?" No. So we look in the using directives; we have already precomputed a database containing all of the metadata for extension methods that could possibly be used.
Now we say "OK, there ...
How to do a scatter plot with empty circles in Python?
... Thanks! The gotcha is that the more usual (in Python) facecolors=None does not work, which tripped me.
– Eric O Lebigot
Mar 1 '15 at 6:49
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In C++, is it still bad practice to return a vector from a function?
...alue then return a value. Don't use output references because the compiler does it anyway. Of course there are caveats, so you should read that article.
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What is the difference between HashSet and List?
...l set operations against a Set: Union/Intersection/IsSubsetOf etc.
HashSet doesn't implement IList only ICollection
You cannot use indices with a HashSet, only enumerators.
The main reason to use a HashSet would be if you are interested in performing Set operations.
Given 2 sets: hashSet1 and ha...