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Which is more efficient, a for-each loop, or an iterator?
...erator when .iterator() is called, however they can be accessed allocation-free using the C-style loop. This can be important in certain high-performance environments where one is trying to avoid (a) hitting the allocator or (b) garbage collections.
– Dan
Dec ...
Adaptive segue in storyboard Xcode 6. Is push deprecated?
... use the now deprecated Push.
I filed a radar (link on the article). Feel free to file duplicates with the hopes of Apple fixing this issue.
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HTML 5 tag vs Flash video. What are the pros and cons?
...30% commission Apple is taking on every sale there. Why endanger that with free Flash apps and games?
– Pekka
Feb 25 '10 at 20:00
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Is there a CSS selector by class prefix?
...;
If you can ensure that such a scenario will never happen, then you are free to use such a selector for the sake of simplicity. However, the combination above is much more robust.
If you have control over the HTML source or the application generating the markup, it may be simpler to just make th...
Creating a simple XML file using python
... the template approach is that you won't get escaping of < and > for free. I danced around that problem by pulling in a util from xml.sax
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Python function overloading
...defining all the potential arguments on the base class, the subclasses are free to ignore the ones they do nothing with.
When a new type of bullet comes along, you can simply define one more p
Should I Dispose() DataSet and DataTable?
...ss finalization in their constructors
While this is an unusual pattern, it frees the caller from having to worry about calling Dispose after use
This, and the fact that DataTables can potentially be shared across different DataSets, is likely why DataSets don’t care to dispose child DataTables
Thi...
vim, switching between files rapidly using vanilla Vim (no plugins)
...rlP and I love it but I wholeheartedly support your decision to go "plugin-free". It's not the easiest way to go but it will pay off in the long run.
Opening files
The most basic way to open a file is :e /path/to/filename. Thankfully, you get tab-completion and wildcards: the classic * and a spe...
Executors.newCachedThreadPool() versus Executors.newFixedThreadPool()
... inside that BlockingQueue<Runnable> instance. When a thread becomes free, one of those queued tasks can be processed.
There are different implementations of the BlockingQueue interface in Java, so we can implement different queuing approaches like:
Bounded Queue: New tasks would be queued ...
How to access outer class from an inner class?
... self.some_subclass = subclasses["some_subclass"]
del subclasses # Free up variable for other use.
def sub_function(self, ...args...):
...other code...
def _subclass_container(self):
_parent_class = self # Create access to parent class.
class some_subclass:
...