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Pinging servers in Python
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This function works in any OS (Unix, Linux, macOS, and Windows)
Python 2 and Python 3
EDITS:
By @radato os.system was replaced by subprocess.call. This avoids shell injection vulnerability in cases where your hostname string might not be validated.
i...
Using generic std::function objects with member functions in one class
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// Call with late supplied 'this'
MyClass myInst;
callable(&myInst, 123);
What would the storage type look like without auto?
Something like this:
std::_Mem_fn_wrap<void,void (__cdecl TestA::*)(int),TestA,int> callable
You can also pass this function storage to a standard function ...
How do I use JDK 7 on Mac OSX?
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Oracle has released JDK 7 for OS X.
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Show hidden div on ng-click within ng-repeat
...hide the first div when I click on second div.
– User123
Oct 12 '16 at 7:41
To answer the Q above... Just change the n...
Typedef function pointer?
... {
return u*v;
}
t_somefunc afunc = &product;
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int x2 = (*afunc)(123, 456); // call product() to calculate 123*456
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How to open the default webbrowser using java
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is this a cross-platform solution or Windows only? other answers in this thread suggest to use the Runtime class for Linux
– isapir
Oct 23 '13 at 4:05
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Using Caps Lock as Esc in Mac OS X
How do I make Caps Lock work like Esc in Mac OS X?
14 Answers
14
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Access data in package subdirectory
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You can use __file__ to get the path to the package, like this:
import os
this_dir, this_filename = os.path.split(__file__)
DATA_PATH = os.path.join(this_dir, "data", "data.txt")
print open(DATA_PATH).read()
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Javascript seconds to minutes and seconds
... var secs = ~~duration % 60;
// Output like "1:01" or "4:03:59" or "123:03:59"
var ret = "";
if (hrs > 0) {
ret += "" + hrs + ":" + (mins < 10 ? "0" : "");
}
ret += "" + mins + ":" + (secs < 10 ? "0" : "");
ret += "" + secs;
return ret;
}
~~ is a sh...
What is the full path to the Packages folder for Sublime text 2 on Mac OS Lion
...the user's library directory is now hidden by default in newer versions of OSX. Run chflags nohidden ~/Library in the terminal to reveal them.
– DA.
Jul 4 '13 at 16:51
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