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How to echo shell commands as they are executed
In a shell script, how do I echo all shell commands called and expand any variable names?
13 Answers
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When to use “ON UPDATE CASCADE”
...CADE.
However, let's say that your primary key is a 10 digit UPC bar code and because of expansion, you need to change it to a 13-digit UPC bar code. In that case, ON UPDATE CASCADE would allow you to change the primary key value and any tables that have foreign key references to the value will be...
Find the number of downloads for a particular app in apple appstore [closed]
...als the info. The best you can do is find a few companies that are sharing and then extrapolate based on app ranking (which is available publicly). The best you'll get is a ball park estimate.
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Can't connect Nexus 4 to adb: unauthorized
I have a Nexus 4 with Android 4.3 and I am trying to connect the device to a computer with Windows 7 64bit.
26 Answers
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Understanding generators in Python
I am reading the Python cookbook at the moment and am currently looking at generators. I'm finding it hard to get my head round.
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LINQ: Not Any vs All Don't
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Implementation of All according to ILSpy (as in I actually went and looked, rather than the "well, that method works a bit like ..." I might do if we were discussing the theory rather than the impact).
public static bool All<TSource>(this IEnumerable<TSource> source, Func<...
My images are blurry! Why isn't WPF's SnapsToDevicePixels working?
...utRounding should be set by default. Images show up just like the original and even text in some places (like ContextMenus, for me at least) shows up crisper than before. Thanks, Domokun!
– grant
Apr 4 '11 at 2:46
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For i = 0, why is (i += i++) equal to 0?
...ation):
int i = 0;
i = i + i; // i=0 because the ++ is a postfix operator and hasn't been executed
i + 1; // Note that you are discarding the calculation result
What actually happens is more involved than that - take a look at MSDN, 7.5.9 Postfix increment and decrement operators:
The run-tim...
Safely remove migration In Laravel
In Laravel, there appears to be a command for creating a migration, but not removing.
9 Answers
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Changing my CALayer's anchorPoint moves the view
...p the view in the same place.
I've tried NSLog -ing self.layer.position and self.center and they both stay the same regardless of changes to the anchorPoint. Yet my view moves!
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