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What Every Programmer Should Know About Memory?
... makes the paper essential for anyone involved in: game development, scientific computing, finance, databases, compilers, processing of large datasets, visualization, anything that has to handle lots of requests... So yes, if you are working in an application that is idle most of the time, like a te...
How to change border color of textarea on :focus
...answered Apr 22 '13 at 21:03
adriftadrift
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Regex not operator
...ver:
\((?!2001)[0-9a-zA-z _\.\-:]*\)
The (?!...) part means "only match if the text following (hence: lookahead) this doesn't (hence: negative) match this. But it doesn't actually consume the characters it matches (hence: zero-width).
There are actually 4 combinations of lookarounds with 2 axes:...
Inline instantiation of a constant List
...ng>, ReadOnlyCollection<string> or something else is up to you... if you expect that it should only be treated as a sequence, then IEnumerable<string> would probably be most appropriate. If the order matters and you want people to be able to access it by index, IList<T> may be a...
How to get last inserted row ID from WordPress database?
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"This function returns false if the row could not be inserted. Otherwise, it returns the number of affected rows (which will always be 1)." From: codex.wordpress.org/Function_Reference/wpdb_Class#INSERT_rows
– unbreak
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List all files and directories in a directory + subdirectories
...d directory contained in a directory and subdirectories of that directory. If I chose C:\ as the directory, the program would get every name of every file and folder on the hard drive that it had access to.
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When to use SELECT … FOR UPDATE?
...ffect of concurrency control, and you achieve the same results without specifying FOR UPDATE explicitly.
To solve this problem, Thread 1 should SELECT id FROM rooms FOR UPDATE, thereby preventing Thread 2 from deleting from rooms until Thread 1 is done. Is that correct?
This depends on the c...
How to customize the back button on ActionBar
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The "up" affordance indicator is provided by a drawable specified in the homeAsUpIndicator attribute of the theme. To override it with your own custom version it would be something like this:
<style name="Theme.MyFancyTheme" parent="android:Theme.Holo">
<item name="andro...
Use grep --exclude/--include syntax to not grep through certain files
...g it, such as --include="*.{cpp,h}", would work just as well). Otherwise, if you had any files in the current working directory that matched the pattern, the command line would expand to something like grep pattern -r --include=foo.cpp --include=bar.h rootdir, which would only search files named fo...
Is there a way to create a function from a string with javascript?
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I added a jsperf test for 4 different ways to create a function from string :
Using RegExp with Function class
var func = "function (a, b) { return a + b; }".parseFunction();
Using Function class with "return"
var func = new Function("return " + "fu...