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Conditional Variable vs Semaphore
...k object that they use to maintain mutual exclusion, but then they provide extra functionality on top of the lock for synchronizing thread execution. It's mostly up to you to figure out which one makes the most sense for your situation.
That's not necessarily the most technical description, but ...
What is the difference between Strategy design pattern and State design pattern?
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In eCommerce application, if extra discount needs to be applied on festive season, then it is state design pattern. The actual discount rate logic can be applied with strategy design pattern, if there are more than one way to arrive at that number.
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Best practices for Storyboard login screen, handling clearing of data upon logout
...imated:NO completion:nil];
}
@end
LoginExample is a sample project for extra help.
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Java GUI frameworks. What to choose? Swing, SWT, AWT, SwingX, JGoodies, JavaFX, Apache Pivot? [close
...course you can integrate your custom controls as well, but that takes some extra effort.
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edited Sep 9 '11 at 12:50
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What is a tracking branch?
...anch sf will automatically push to and pull from origin/serverfix.
BONUS: extra git status info
With a tracking branch, git status will tell you whether how far behind your tracking branch you are - useful to remind you that you haven't pushed your changes yet! It looks like this:
$ git status
O...
Bootstrap css hides portion of container below navbar navbar-fixed-top
...ntainability test for no good reason). It isn't clear right away what this extra navbar does.
– fragilewindows
Dec 7 '16 at 13:07
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Pandas: create two new columns in a dataframe with values calculated from a pre-existing column
...e above example should clearly show how slow apply can be, but just so its extra clear let's look at the most basic example. Let's square a Series of 10 million numbers with and without apply
s = pd.Series(np.random.rand(10000000))
%timeit s.apply(calc)
3.3 s ± 57.4 ms per loop (mean ± std. dev....
Confusion: @NotNull vs. @Column(nullable = false) with JPA and Hibernate
...he latter for indicating database schema details. You're just getting some extra (and welcome!) help from Hibernate on the validation annotations.
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Why can't C++ be parsed with a LR(1) parser?
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I'm quite puzzled by the citation extracted from a PhD Thesis. If there is an ambiguïty, then, by definition, NO lookahead may ever "resolve" the ambiguity (i.e. decide which parse is the correct oen, as at least 2 parses are considered correct by the gramma...
Why no love for SQL? [closed]
...mbiguous, and also because most vendors have added their own (nonstandard) extras there. That is, SQL written for a MySQL DB might not work quite similarly with, say, an Oracle DB — even if it "should".
I agree, though, that SQL is way better than most of the abstraction layers out there. It's no...