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What's the difference between an exclusive lock and a shared lock?
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When the students are reading (shared locks) what is on the board:
They all can read what is on it, together => Multiple shared locks can co-exist.
The teacher waits for them to finish reading before she clears the board to write more => If one or more shared locks already exist, exclusive ...
How to get the pure text without HTML element using JavaScript?
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Trying to parse HTML with regular expressions is really dangerous --- it's practically impossible (I suspect it may be theoretically impossible) to get right. There's too many edge cases and then your code blows up when faced with strange input, which can frequently be exploi...
The name 'InitializeComponent' does not exist in the current context
... Crazily enough, this worked for me with VS2015. And it fixed all of the errors in all the XAML files. This is a really WTF moment.
– William Denman
Jan 18 '16 at 19:27
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Image Processing: Algorithm Improvement for 'Coca-Cola Can' Recognition
...ne of the feature descriptors can differentiate bottles from a cans.. They all just view invariant local pattern descriptors. I agree that SIFT,SURF,ORB,FREAK etc. can help you in feature matching but.. What about your other parts of the question like occlusions, Bottle vs Can etc. I hope this is no...
Display HTML snippets in HTML
...f escaping some characters:
& as &
< as &lt;
(Incidentally, there is no need to escape > but people often do it for reasons of symmetry.)
And of course you should surround the resulting, escaped HTML code within <pre><code>…</code></pre> to (a) prese...
Unit test, NUnit or Visual studio?
...te in NUnit but must be done using Try-Catch in MS-Test
[TestCase]! NUnit allows for parameter-ized tests.
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Multiple left-hand assignment with JavaScript
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Actually,
var var1 = 1, var2 = 1, var3 = 1;
is not equivalent to:
var var1 = var2 = var3 = 1;
The difference is in scoping:
function good() {
var var1 = 1, var2 = 1, var3 = 1;
}
function bad() {
var var1 = va...
How do I syntax check a Bash script without running it?
...is documented, and as the beginning of the manpage states, bash interprets all single-character options that set does.
– ephemient
Oct 5 '08 at 20:55
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Switch statement for string matching in JavaScript
...ode would match that in the "xxx.local" branch.
Update: Okay, so technically you can use a switch for substring matching, but I wouldn't recommend it in most situations. Here's how (live example):
function test(str) {
switch (true) {
case /xyz/.test(str):
display("• Matched '...
How can I get the button that caused the submit from the form submit event?
...document.activeElement);
if (
/* there is an activeElement at all */
$btn.length &&
/* it's a child of the form */
$form.has($btn) &&
/* it's really a submit element */
$btn.is('button[type="submit"], input[type="submit"], input...