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android TextView: setting the background color dynamically doesn't work
... The android API is really something, why couldn't it throw an error?
– Tawani
Sep 23 '09 at 17:05
54
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How accurate is python's time.sleep()?
... delta = end-start
return delta.seconds + delta.microseconds/1000000.
error = sum(abs(check_sleep(0.050)-0.050) for i in xrange(100))*10
print "Average error is %0.2fms" % error
For the record, I get around 0.1ms error on my HTPC and 2ms on my laptop, both linux machines.
...
Why does scanf() need “%lf” for doubles, when printf() is okay with just “%f”?
Why is it that scanf() needs the l in " %lf " when reading a double , when printf() can use " %f " regardless of whether its argument is a double or a float ?
...
ASP.NET MVC controller actions that return JSON or partial html
...he JsonRequestBehavior.AllowGet; without this MVC was returning a HTTP 500 error (with dataType: json specified on the client).
Add cache: false to the $.ajax call, otherwise you will ultimately get HTTP 304 responses (instead of HTTP 200 responses) and the server will not process your request.
Fina...
How to quickly check if folder is empty (.NET)?
...irst file",
Marshal.GetExceptionForHR(Marshal.GetHRForLastWin32Error()));
}
throw new DirectoryNotFoundException();
}
I hope it will be useful for somebody in the future.
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Are there legitimate uses for JavaScript's “with” statement?
...ck"
Declaring a closure in a loop is a common task where this can lead to errors:
for (var i=0; i<3; ++i)
{
var num = i;
setTimeout(function() { alert(num); }, 10);
}
Because the for loop does not introduce a new scope, the same num - with a value of 2 - will be shared by all three functi...
Node.js project naming conventions for files & folders
...ed for me on mac. It worked fine on mac of my co-worker. Tests run without errors. After deploy we got a huge error:
Error: Cannot find module './lib/isHidden'
Oh yeah. It's a linux box. So camelCase directory structure could be dangerous. It's enough for a colleague who is developing on Windows ...
Linux, Why can't I write even though I have group permissions?
I want to create a file in a directory owned by the staff group which I am a member of. Why can I not do this?
6 Answers
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How persistent is localStorage?
I'm depending heavily on localStorage for a plugin I'm writing. All the user settings are stored in it. Some settings require the user the write regex'es and they would be sad if their regex rules are gone at some point.
So now I am wondering just how persistent the localStorage is.
...
Query EC2 tags from within instance
...stance_status = tags[0].value
else:
instance_status = None
logging.error('no status tag for '+region+' '+instance_id)