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const vs constexpr on variables
... go (tested each of them before posting). However my compiler does let me convert PI1 to a compile-time integral constant for use in an array, but not for use as a non-type integral template parameter. So the compile-time convertibility of PI1 to an integral type seems a little hit & miss to m...
Converting 'ArrayList to 'String[]' in Java
How might I convert an ArrayList<String> object to a String[] array in Java?
16 Answers
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Sort points in clockwise order?
...y done in any language. The formulas can be found in this section.
After converting to polar coordinates, just sort by the angle, theta.
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How do I apply the for-each loop to every character in a String?
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You need to convert the String object into an array of char using the toCharArray() method of the String class:
String str = "xyz";
char arr[] = str.toCharArray(); // convert the String object to array of char
// iterate over the array...
No module named _sqlite3
...teps below:
Install sqlite-devel (or libsqlite3-dev on some Debian-based systems)
Re-configure and re-compiled Python with ./configure --enable-loadable-sqlite-extensions && make && sudo make install
Note
The sudo make install part will set that python version to be the system...
error C2664:...No user-defined-conversion operator available that can ...
... >(unsigned int,const int &,
const class std::allocator<int> &)' : cannot convert parameter 1 from 'class std::deque<int,class std::allocator<int> >::iterator' to 'unsigned int'
No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called...
Get number of digits with JavaScript
...y What's going on here. toString() and String() same build-in function for converting digit to string, once we converted then we'll find the length of the string by build-in function length
virtualenv --no-site-packages and pip still finding global packages?
...an't see it. Frustration is mounting, and any help is much appreciated. My sys.path from inside a venv created with --no-site-packages appears to include all of my package directories. I haven't the foggiest how to modify this. Help?
– NotAnAmbiTurner
Nov 18 '1...
Do HTML WebSockets maintain an open connection for each client? Does this scale?
...end on how well the current AJAX/long-poll model is working. The effort to convert will be non-trivial so in many cases the cost just won't be worth the benefit.
Update:
Useful link: 600k concurrent websocket connections on AWS using Node.js
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Convert a bitmap into a byte array
Using C#, is there a better way to convert a Windows Bitmap to a byte[] than saving to a temporary file and reading the result using a FileStream ?
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