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Who is listening on a given TCP port on Mac OS X?
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2159
On macOS High Sierra and later, use this command:
lsof -nP -iTCP:$PORT | grep LISTEN
or to...
Center a position:fixed element
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627
You basically need to set top and left to 50% to center the left-top corner of the div. You als...
How many and which are the uses of “const” in C++?
...have their own version.
Using code:
int main() {
string const a = "1234";
string const b = a;
// outputs the same address for COW strings
cout << (void*)&a[0] << ", " << (void*)&b[0];
}
The above snippet prints the same address on my GCC, because the us...
Get number days in a specified month using JavaScript? [duplicate]
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// Month here is 1-indexed (January is 1, February is 2, etc). This is
// because we're using 0 as the day so that it returns the last day
// of the last month, so you have to add 1 to the month number
// so it returns the correct amount of days
function daysInMonth (month, yea...
jQuery: Get selected element tag name
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edited Aug 13 '14 at 16:32
rgajrawala
1,76611 gold badge1717 silver badges3333 bronze badges
answered M...
Changing UIImage color
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265
Since iOS 7, this is the most simple way of doing it.
Objective-C:
theImageView.image = [the...
How to install Google Play Services in a Genymotion VM (with no drag and drop support)?
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As of Genymotion 2.10.0 and onwards, GApps can be installed from the emulator toolbar.
Please refer to answer by @MichaelStoddart.
Next follows former answer kept here for historic reason:
Genymotion doesn't provide Google Apps. To install ...
hash function for string
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I've had nice results with djb2 by Dan Bernstein.
unsigned long
hash(unsigned char *str)
{
unsigned long hash = 5381;
int c;
while (c = *str++)
hash = ((hash << 5) + hash) + c; /* hash * 33 + c */
return hash;
}
...
Node.js - Find home directory in platform agnostic way
Process.platform returns "win32" for Windows. On Windows a user's home directory might be C:\Users[USERNAME] or C:\Documents and Settings[USERNAME] depending on which version of Windows is being used. On Unix this isn't an issue.
...