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Why does CSS work with fake elements?
In my class, I was playing around and found out that CSS works with made-up elements.
19 Answers
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Difference between \w and \b regular expression meta characters
...in the difference between \b and \w regular expression metacharacters? It is my understanding that both these metacharacters are used for word boundaries. Apart from this, which meta character is efficient for multilingual content?
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Validate a username and password against Active Directory?
...als
bool isValid = pc.ValidateCredentials("myuser", "mypassword");
}
It's simple, it's reliable, it's 100% C# managed code on your end - what more can you ask for? :-)
Read all about it here:
Managing Directory Security Principals in the .NET Framework 3.5
MSDN docs on System.DirectoryServi...
How to escape text for regular expression in Java
Does Java have a built-in way to escape arbitrary text so that it can be included in a regular expression? For example, if my users enter "$5", I'd like to match that exactly rather than a "5" after the end of input.
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Why does sun.misc.Unsafe exist, and how can it be used in the real world?
...me across the sun.misc.Unsafe package the other day and was amazed at what it could do.
16 Answers
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Is it possible to data-bind visible to the negation (“!”) of a boolean ViewModel property?
...'d like to use a property on my ViewModel to toggle which icon to display without creating a separate computed property of the inverse. Is this possible?
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Error: CUICatalog: Invalid asset name supplied: (null), or invalid scale factor : 2.000000
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Add symbolic breakpoint for [UIImage imageNamed:]
Add $arg3 == nil condition on Simulator, $r0 == nil condition on 32-bit iPhone, or $x2 == nil on 64-bit iPhone.
Run your application and see where debugger will stop.
P.S. Keep in mind this also happens if image name is empty string. You can ch...
What does the “at” (@) symbol do in Python?
...ing at some Python code which used the @ symbol, but I have no idea what it does. I also do not know what to search for as searching Python docs or Google does not return relevant results when the @ symbol is included.
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How to remove focus without setting focus to another control?
I like my UIs to be intuitive; each screen should naturally and unobtrusively guide the user on to the next step in the app. Barring that, I strive to make things as confusing and confounding as possible.
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Can I convert long to int?
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Just do (int)myLongValue. It'll do exactly what you want (discarding MSBs and taking LSBs) in unchecked context (which is the compiler default). It'll throw OverflowException in checked context if the value doesn't fit in an int:
int myIntValue = unc...