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MongoDB logging all queries
...ystem profile collection for all queries that took longer than one second, ordered by timestamp descending will be
db.system.profile.find( { millis : { $gt:1000 } } ).sort( { ts : -1 } )
share
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LLVM vs clang on OS X
...ediate representation on its own; it needs a language-specific frontend in order to do so. If people just refer to LLVM, they probably mean just the low-level library and tools. Some people might refer to Clang or llvm-gcc incorrectly as "LLVM", which may cause some confusion.
llvm-gcc is a modifie...
How can I convert ereg expressions to preg in PHP?
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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Left Align Cells in UICollectionView
...CGFloat maxY = -1.0f;
//this loop assumes attributes are in IndexPath order
for (UICollectionViewLayoutAttributes *attribute in attributes) {
if (attribute.frame.origin.y >= maxY) {
leftMargin = self.sectionInset.left;
}
attribute.frame = CGRectMake(l...
Can you add new statements to Python's syntax?
...nces for the construction of this article. Here they are, in no particular order:
PEP 339: Design of the CPython compiler - probably the most important and comprehensive piece of official documentation for the Python compiler. Being very short, it painfully displays the scarcity of good documentat...
PHP Redirect with POST data
...d a list of things being purchased and customer details
$.getJSON('setupOrder.php', {listOfProducts: products, customerDetails: details }, function(data) {
if (!data.error) {
$('#paymentForm #customInvoiceID').val(data.id);
$('#paymentForm').submit(); //Send client to the payment proc...
Properties vs Methods
... Calling the member twice in succession produces different results.
The order of execution is important. Note that a type's properties should
be able to be set and retrieved in any
order.
The member is static but returns a value that can be changed.
The member returns an array. Properties...
Apache and Node.js on the Same Server
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Instructions to run node server along apache2(v2.4.xx) server:
In order to pipe all requests on a particular URL to your Node.JS application create CUSTOM.conf file inside /etc/apache2/conf-available directory, and add following line to the created file:
ProxyPass /node http://localhost:80...
How do Mockito matchers work?
... or, and not. This perfectly corresponds to (and relies on) the evaluation order of Java, which evaluates arguments left-to-right before invoking a method:
when(foo.quux(anyInt(), and(gt(10), lt(20)))).thenReturn(true);
[6] [5] [1] [4] [2] [3]
This will:
Add anyInt() to the stack.
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What does the PHP error message “Notice: Use of undefined constant” mean?
...;
}
Referring to a class constant without specifying the class scope
In order to refer to a class constant you need to specify the class scope with ::, if you miss this off PHP will think you're talking about a global define().
Eg:
class MyClass {
const MY_CONST = 123;
public function my_m...