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What is Virtual DOM?
...electively renders subtrees of nodes based upon state changes. It does the least amount of DOM manipulation possible in order to keep your components up to date.
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Why does this Java code compile?
...s all four conditions is illegal, but a forward reference that fails on at least one condition is OK.
int a = a = 1; compiles because it violates (b): the reference a is being assigned to, so it's legal to refer to a in advance of a's complete declaration.
int b = this.b + 1 also compiles because ...
How many String objects will be created when using a plus sign?
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It is documented behavior at least for Microsoft's C# compiler for VS 2008 and 2010 (see @David-Stratton's answer). That said, you are right- as far as I can tell from a quick perusal, the C# spec doesn't specify this and it probably should be considere...
Is there any async equivalent of Process.Start?
...pport, but it'll gather the standard output and standard error for you, at least. github.com/jamesmanning/RunProcessAsTask
– James Manning
Dec 3 '12 at 5:54
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Why maven? What are the benefits? [closed]
...uired, control the converge across modules, etc. There is no magic. But at least you have support.
And don't forget that dependency management is only a small part of what Maven offers, there is much more (not even mentioning the other tools that integrates nicely with Maven, e.g. Sonar).
Slow ...
How to upgrade PostgreSQL from version 9.6 to version 10.1 without losing data?
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Update: This process is the same for upgrading 9.5 through at least 11.5; simply modify the commands to reflect versions 9.6 and 10, where 9.6 is the old version and 10 is the new version. Be sure to adjust the "old" and "new" directories accordingly, too.
I just upgraded PostgreSQL ...
Real World Example of the Strategy Pattern
...e many things (most views, most subscribers, creation date, most activity, least amount of comments, etc), and in case management doesn't yet know exactly how to order, and may want to experiment with different orderings at a later date. You make an interface (IOrderAlgorithm or something) with an o...
Is there a performance difference between i++ and ++i in C?
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First, it is far from obvious that ++i is more efficient than i++, at least where integer variables are concerned.
And :
So the question one should be asking is not which of these two operations is faster, it is which of these two operations expresses more accurately what you are trying t...
Simple insecure two-way data “obfuscation”?
...on, initialisation vector and proper padding is insecure. Using DES is the least important problem with this scheme.
– Hubert Kario
Aug 19 '12 at 1:00
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Converting between datetime, Timestamp and datetime64
...2-05-01T01:00:00.000000+0100') returns Timestamp('2012-05-01 00:00:00') at least in pandas 0.17.1.
– Anton Protopopov
Jan 21 '16 at 10:15
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