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How can I generate random alphanumeric strings?
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@Alex: I've run a few quick tests and it seems to scale pretty much linearly when generating longer strings (so long as there's actually enough memory available). Having said that, Dan Rigby's answer was almost twice as fast as this one in every test.
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Warn user before leaving web page with unsaved changes
...alter the code to work on any form ($("form").each() will do), but the greatest problem is that jQuery's serialize() will only work on named, non-disabled elements, so changing any disabled or unnamed element will not trigger the dirty flag. There are workarounds for that, like making controls reado...
JavaScript loop through json array?
...s. The referenced question has a lengthy discussion about pros and cons.
Test with for(var i ...
But it seems that the follwing is quite save:
for(var i = 0; i < array.length; i += 1)
Although a test in chrome had the following result
var ar = [];
ar[0] = "a";
ar[1] = "b";
ar[4] = "c";
f...
Maximum number of threads in a .NET app?
... can use reflector if interested in the actual members).
You can actually test it for yourself, compare:
static void DummyCall()
{
Thread.Sleep(1000000000);
}
static void Main(string[] args)
{
int count = 0;
var threadList = new List<Thread>();
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How do I trim whitespace from a string?
...oes nothing for spaces between characters.
words=input("Enter the word to test")
# If I have a user enter discontinous threads it becomes a problem
# input = " he llo, ho w are y ou "
n=words.strip()
print(n)
# output "he llo, ho w are y ou" - only leading & trailing spaces are removed
In...
Oracle query to fetch column names
...ME before it can compare it to the supplied UPPER('MyTableName'). In quick testing this made the performance unusable for my purpose so I will stick with case sensitive comparisons.
– Chris Magnuson
Apr 13 '18 at 18:05
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What does 'synchronized' mean?
...rint(String s) {
System.out.println(s+"\n");
}
}
public class TestThread extends Thread {
String name;
TheDemo theDemo;
public TestThread(String name,TheDemo theDemo) {
this.theDemo = theDemo;
this.name = name;
start();
}
@Override
public ...
Where do I set my company name?
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I have tested on the Xcode 4.2 Beta 7 (iOS 5.0).
It seems like the Xcode does not retrieve ORGANIZATIONNAME from neither
defaults write com.apple.Xcode PBXCustomTemplateMacroDefinitions
'{ORGANIZATIONNAME="YourNameHere";}'
...
`staticmethod` and `abc.abstractmethod`: Will it blend?
...ass A(object):
__metaclass__ = abc.ABCMeta
@abstractstatic
def test():
print 5
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Skip List vs. Binary Search Tree
... locked.
Update from Jon Harrops comments
I read Fraser and Harris's latest paper Concurrent programming without locks. Really good stuff if you're interested in lock-free data structures. The paper focuses on Transactional Memory and a theoretical operation multiword-compare-and-swap MCAS. B...