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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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Can I “multiply” a string (in C#)?
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And it's not much more in .NET 3.5: String.Concat(Enumerable.Repeat("Hello", 4).ToArray())
– Mark Foreman
Sep 3 '12 at 0:54
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Hide the cursor of an UITextField
I am using a UITextField with a UIPickerView for its inputView , so that when the user taps the text field, a picker is summoned for them to select an option from.
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Git push won't do anything (everything up-to-date)
I'm trying to update a Git repository on GitHub. I made a bunch of changes, added them, committed then attempted to do a git push . The response tells me that everything is up to date, but clearly it's not.
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How can I trim beginning and ending double quotes from a string?
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You can use String#replaceAll() with a pattern of ^\"|\"$ for this.
E.g.
string = string.replaceAll("^\"|\"$", "");
To learn more about regular expressions, have al ook at http://regular-expression.info.
That said, this smells a bit like that you're try...
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...
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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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 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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