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How do I remove all non alphanumeric characters from a string except dash?
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903
Replace [^a-zA-Z0-9 -] with an empty string.
Regex rgx = new Regex("[^a-zA-Z0-9 -]");
str = rg...
Why use bzero over memset?
...ons for memset which switch to a particular implementation when a constant 0 is detected. Same for glibc when builtins are disabled.
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Why would I ever use push_back instead of emplace_back?
...d its memory. However, I was basing these changes off my understanding in 2012, during which I thought "emplace_back does everything push_back can do and more, so why would I ever use push_back?", so I also changed the push_back to emplace_back.
Had I instead left the code as using the safer push_b...
Random “Element is no longer attached to the DOM” StaleElementReferenceException
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120
Yes, if you're having problems with StaleElementReferenceExceptions it's because your tests are ...
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...
How do I make my string comparison case insensitive?
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edited Feb 12 '10 at 14:09
answered Feb 8 '10 at 8:52
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How large should my recv buffer be when calling recv in the socket library
...old the largest individual message / command you would reasonably expect (3000 is likely fine). If your protocol is transferring bulk data, then larger buffers can be more efficient - a good rule of thumb is around the same as the kernel receive buffer size of the socket (often something around 256...
A regular expression to exclude a word/string
...ay (using a negative look-ahead):
^/(?!ignoreme|ignoreme2|ignoremeN)([a-z0-9]+)$
Note: There's only one capturing expression: ([a-z0-9]+).
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How to read if a checkbox is checked in PHP?
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350
If your HTML page looks like this:
<input type="checkbox" name="test" value="value1">
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