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What does [STAThread] do?
...present on the entry point of any
application that uses Windows Forms;
if it is omitted, the Windows
components might not work correctly.
If the attribute is not present, the
application uses the multithreaded
apartment model, which is not
supported for Windows Forms.
This blog post ...
In which order do CSS stylesheets override?
....w3.org/TR/2011/REC-CSS2-20110607/cascade.html#cascade
In short: more specific rules override more general ones. Specificity is defined based on how many IDs, classes, and element names are involved, as well as whether the !important declaration was used. When multiple rules of the same "specificit...
getenv() vs. $_ENV in PHP
What is the difference between getenv() and $_ENV ?
6 Answers
6
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How do I get the last four characters from a string in C#?
...g.Substring(Math.Max(0, mystring.Length - 4)); //how many lines is this?
If you're positive the length of your string is at least 4, then it's even shorter:
mystring.Substring(mystring.Length - 4);
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Programmatically open Maps app in iOS 6
...ial Apple way:
// Check for iOS 6
Class mapItemClass = [MKMapItem class];
if (mapItemClass && [mapItemClass respondsToSelector:@selector(openMapsWithItems:launchOptions:)])
{
// Create an MKMapItem to pass to the Maps app
CLLocationCoordinate2D coordinate =
CLLocat...
How to change variables value while debugging with LLDB in Xcode?
...alue while debugging in XCode? ). Does LLDB offer a similar functionality? If so, how can we use it?
3 Answers
...
Can regular expressions be used to match nested patterns? [duplicate]
...regular expression) does not have memory apart from the state it's in, and if you have arbitrarily deep nesting, you need an arbitrarily large automaton, which collides with the notion of a finite automaton.
You can match nested/paired elements up to a fixed depth, where the depth is only limited b...
Is it faster to count down than it is to count up?
...me reason it is more efficient to count down than to count up.
For example if you need to use a FOR loop and the loop index is not used somewhere (like printing a line of N * to the screen)
I mean that code like this:
...
Why does my application spend 24% of its life doing a null check?
... not a perfect solution. The processor will still stall on a memory access if the data is not available in one of the caches. It cannot continue until the very slow memory bus has supplied the data. Losing a fat hundred CPU cycles is possible on a single instruction.
Tree structures are a problem, ...
Convert number to month name in PHP
...c representation of a month, with leading zeroes.
Alternative solution:
If you're using an older PHP version and can't upgrade at the moment, you could this solution.
The second parameter of date() function accepts a timestamp, and you could use mktime() to create one, like so:
$monthNum = 3;
$...