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Set Django IntegerField by choices=… name
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Really like the Encapsulation section on the blog.
– Nathan Keller
Mar 3 '13 at 21:57
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Is there a shortcut to make a block comment in Xcode?
...( // ) comment. I'm using Xcode. In Sublime Text and Eclipse, and I think most other IDEs, there are separate keyboard shortcuts for line comments and block comments ( /**/ ). However, I don't see that in Xcode - in fact, I don't even see a menu option to add a block comment. Is it simply not suppor...
Difference between Array and List in scala
...at you should (probably) be using it much more than an Array (which is actually mutable - the immutable analog of Array is IndexedSeq).
If you are coming from a Java background, then the obvious parallel is when to use LinkedList over ArrayList. The former is generally used for lists which are only...
Code Golf: Lasers
...is sitting on top of now. Since the laser emitter is to be treated like a wall, set this to be a wall to begin with.
if (tr/v<^/>v</) {
my $o;
$o .= "\n" while s/.$/$o .= $&, ""/meg;
tr,/\\,\\/, for $o, $s;
$_ = $o;
}
If the laser beam is pointing any way except right, rotate...
string sanitizer for filename
...a whitelist of characters you are happy to be used? For example, you could allow just good ol' a-z, 0-9, _, and a single instance of a period (.). That's obviously more limiting than most filesystems, but should keep you safe.
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What is in your Mathematica tool bag? [closed]
We all know that Mathematica is great, but it also often lacks critical functionality. What kind of external packages / tools / resources do you use with Mathematica?
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Why can't my program compile under Windows 7 in French? [closed]
I'm running Windows 7 French and I'm trying to compile this really basic program, but Visual Studio is being stubborn and refuses to comply. I also tried compiling it with both GCC 4.7 and Clang trunk on Coliru and I get more or less the same errors (output is below the code), though I think Colir...
vector::at vs. vector::operator[]
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I'd say the exceptions that vector::at() throws aren't really intended to be caught by the immediately surrounding code. They are mainly useful for catching bugs in your code. If you need to bounds-check at runtime because e.g. the index comes from user input, you're indeed best of...
When NOT to call super() method when overriding?
... its native class. Then when I want to override the base method, I always call super() method, just like I always do in onCreate , onStop , etc.
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invalid context 0x0 under iOS 7.0 and system degradation
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Others will ask you to post the code where you access a core graphics context, but I doubt that's the issue. These invalid context 0x0 error messages are common and easy to reproduce in iOS 7. In fact, I can reproduce the error using storyboard with...