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How does PHP 'foreach' actually work?
...r the simplest case is Traversable objects, as for these foreach is essentially only syntax sugar for code along these lines:
foreach ($it as $k => $v) { /* ... */ }
/* translates to: */
if ($it instanceof IteratorAggregate) {
$it = $it->getIterator();
}
for ($it->rewind(); $it->v...
Similar to jQuery .closest() but traversing descendants?
...found.length) break; // At least one match: break loop
// Get all children of the current set
$currentSet = $currentSet.children();
}
return $found.first(); // Return first match of the collection
}
})(jQuery);
...
\d is less efficient than [0-9]
...
\d checks all Unicode digits, while [0-9] is limited to these 10 characters. For example, Persian digits, ۱۲۳۴۵۶۷۸۹, are an example of Unicode digits which are matched with \d, but not [0-9].
You can generate a list of all su...
Create RegExps on the fly using string variables
...
With string literals this is easy enough.
Not really! The example only replaces the first occurrence of string_to_replace. More commonly you want to replace all occurrences, in which case, you have to convert the string into a global (/.../g) RegExp. You can do this from a...
iPhone app in landscape mode, 2008 systems
...AutorotateToInterfaceOrientation properly everywhere" it means everywhere, all your fullscreen views.
Hope it helps in this nightmare!
An important reminder of the ADDITIONAL well-known problem at hand here: if you are trying to swap between MORE THAN ONE view (all landscape), IT SIMPLY DOES NOT WOR...
How can I configure NetBeans to insert tabs instead of a bunch of spaces?
...herent values for "Number of Spaces per indent" and "Tab Size".
Additionally, you can check all the items in the Language combo and make sure they all use the general setting.
You can also change it in a per-project fashion. Right click on the project icon, select Properties and review the For...
Eclipse: quick search on filename
...
Eclipse does provide similar functions:
Open Resource Shift+Ctrl+R for all resource files (including Java files)
Open Type Shift+Ctrl+T for all Java classes in classpath.
They also filter the list as you type.
Note that they search all files of all opened projects in current workspace.
...
Using tags to turn off caching in all browsers? [duplicate]
...ect information!
See answer here:
How to control web page caching, across all browsers?
For IE9 and before
Do not blindly copy paste this!
The list is just examples of different techniques, it's not for direct
insertion. If copied, the second would overwrite the first and the
fourth wo...
Computational complexity of Fibonacci Sequence
...ll have depth n and intuitively figure out that this function is asymptotically O(2n). You can then prove your conjecture by induction.
Base: n = 1 is obvious
Assume T(n-1) = O(2n-1), therefore
T(n) = T(n-1) + T(n-2) + O(1) which is equal to
T(n) = O(2n-1) + O(2n-2) + O(1) = O(2n)
However, as ...
Can I make fast forwarding be off by default in git?
I can't really ever think of a time when I would use git merge rather than git rebase and not want to have a commit show up. Is there any way to configure git to have fast forwarding off by default? The fact that there's an --ff option would seem to imply that there's a way, but I can't se...