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Black transparent overlay on image hover with only CSS?
...-filters/
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In C#, how to check if a TCP port is available?
...to get to an array of TcpConnectionInformation objects, which you can then interrogate about endpoint IP and port.
int port = 456; //<--- This is your value
bool isAvailable = true;
// Evaluate current system tcp connections. This is the same information provided
// by the netstat command...
Programmatically open Maps app in iOS 6
... completionHandler:^(NSArray *placemarks, NSError *error) {
// Convert the CLPlacemark to an MKPlacemark
// Note: There's no error checking for a failed geocode
CLPlacemark *geocodedPlacemark = [placemarks objectAtIndex:0];
MKPlacemark *placemark = [[MKPlacemark a...
Compare two List objects for equality, ignoring order [duplicate]
...> list1, IEnumerable<T> list2) {
var cnt = new Dictionary<T, int>();
foreach (T s in list1) {
if (cnt.ContainsKey(s)) {
cnt[s]++;
} else {
cnt.Add(s, 1);
}
}
foreach (T s in list2) {
if (cnt.ContainsKey(s)) {
cnt[s]--;
} else {
retur...
Choose between ExecutorService's submit and ExecutorService's execute
...ask to be invoked. The default UncaughtExceptionHandler, which typically prints the Throwable stack trace to System.err, will be invoked if no custom handler has been installed.
On the other hand, a Throwable generated by a task queued with submit() will bind the Throwable to the Future that was pr...
Maven in Eclipse: step by step installation [closed]
...eft panel
Finally,
Click on an existing project
Select Configure -> Convert to Maven Project
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str performance in python
...hon code ( python 2.6 up to 3.2 ), I discovered that the
str method to convert an object (in my case an integer) to a string is almost an order of magnitude slower than using string formatting.
...
ValueError: math domain error
...sult
is calculated in a way which is accurate for x near zero.
You may convert back to the original value using math.expm1 which returns e raised to the power x, minus 1.
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What's the point of NSAssert, actually?
...
If I understand correctly, what is the point of leaving them (on the release version)? Why not replace the NSAssert with a if statement, and if (something terrible happens), then inform the user (or do something that is under your control), and not just quit/crash a...
Real world example about how to use property feature in python?
... the distance in metres
# All units provided using setters will be converted before
# being stored
self._distance = 0.0
@property
def in_metres(self):
return self._distance
@in_metres.setter
def in_metres(self, val):
try:
self._di...