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Simplest way to profile a PHP script
...the server, turn it on, pump the output through kcachegrind (for linux) or wincachegrind (for windows) and it'll show you a few pretty charts that detail the exact timings, counts and memory usage (but you'll need another extension for that).
It rocks, seriously :D
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Why does string::compare return an int?
...ll the way to one of them
// ends. If the length isn't equal, "longest" wins.
return a.length() - b.length();
}
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Randomize a List
...rable.Range(1, 75));
numbers.Shuffle();
Console.WriteLine("The winning numbers are: {0}", string.Join(", ", numbers.GetRange(0, 5)));
}
}
public static class ThreadSafeRandom
{
[ThreadStatic] private static Random Local;
public static Random ThisThreadsRandom
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AtomicInteger lazySet vs. set
...re: http://psy-lob-saw.blogspot.co.uk/2012/12/atomiclazyset-is-performance-win-for.html
To summarize: lazySet is a weak volatile write in the sense that it acts as a store-store and not a store-load fence. This boils down to lazySet being JIT compiled to a MOV instruction that cannot be re-ordered ...
Difference between modes a, a+, w, w+, and r+ in built-in open function?
...ows:
The argument mode points to a string beginning with one of the following
sequences (Additional characters may follow these sequences.):
``r'' Open text file for reading. The stream is positioned at the
beginning of the file.
``r+'' Open for reading and writing. The stream i...
How does “make” app know default target to build if no target is specified?
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This should be the correct answer. Explicit over implicit wins in this case.
– Sion
Sep 14 '18 at 9:05
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What is a segmentation fault?
... mapped files it is possible for someone else to mess with your memory. In WIN32 there are nasty API's like 'WriteProcessMemory' too!
– paulm
Feb 17 '14 at 23:46
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SSL Connection / Connection Reset with IISExpress
...his range is all I had to do to make it work.
I noticed this after reviewing the netsh http show sslcert > sslcert.txt output and something clicking with stuff I read recently about the port numbers.
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Remote branch is not showing up in “git branch -r”
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I'm using the GitHub client on Win and sometimes it doesn't update the remote branches. The first line "git remote update" works like a charm. Easy & clean
– Stefano Buora
Aug 9 '16 at 13:42
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jQuery .hasClass() vs .is()
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Update:
I committed a test following a comment and four upvotes to very comment. It turns out that what I had said is the correct answer. Here is the result:
http://jsperf.com/hasclass-vs-is-so
The is is multi-purpose, you can for example do is('.class'),...