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Why and How to avoid Event Handler memory leaks?
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answered Dec 24 '10 at 14:32
Jon SkeetJon Skeet
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What is the proper declaration of main?
...ogram. argc is the number of arguments in the argv array.
Usually, argv[0] contains the name of the program, but this is not always the case. argv[argc] is guaranteed to be a null pointer.
Note that since an array type argument (like char*[]) is really just a pointer type argument in disguise, ...
Read whole ASCII file into C++ std::string [duplicate]
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540
Update: Turns out that this method, while following STL idioms well, is actually surprisingly in...
String length in bytes in JavaScript
...ing, you can do,
function lengthInUtf8Bytes(str) {
// Matches only the 10.. bytes that are non-initial characters in a multi-byte sequence.
var m = encodeURIComponent(str).match(/%[89ABab]/g);
return str.length + (m ? m.length : 0);
}
This should work because of the way UTF-8 encodes multi-...
Get selected element's outer HTML
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2014 Edit : The question and this reply are from 2010. At the time, no better solution was widely available. Now, many of the other replies are better : Eric Hu's, or Re Capcha's for example.
This site seems to have a solutio...
Handling optional parameters in javascript
...y:
function getData (/*id, parameters, callback*/) {
var id = arguments[0], parameters, callback;
if (arguments.length == 2) { // only two arguments supplied
if (Object.prototype.toString.call(arguments[1]) == "[object Function]") {
callback = arguments[1]; // if is a function, set a...
Scatterplot with too many points
I am trying to plot two variables where N=700K. The problem is that there is too much overlap, so that the plot becomes mostly a solid block of black. Is there any way of having a grayscale "cloud" where the darkness of the plot is a function of the number of points in an region? In other words, ins...
Node.js vs .Net performance
...FAST at serving one request per second might totally croak if you send it 500 requests per second (under LOAD).
You also have to consider static (and cached) vs dynamic pages. If you're worried about static pages, then IIS is probably going to beat node because IIS uses kernel-mode caching, which ...
Get image data url in JavaScript?
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401
Note: This only works if the image is from the same domain as the page, or has the crossOrigin=...
socket.error: [Errno 48] Address already in use
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