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Is it worth using Python's re.compile?
...ekey = (type(key[0]),) + key
p = _cache.get(cachekey)
if p is not None: return p
# ...
# Does actual compilation on cache miss
# ...
# Caches compiled regex
if len(_cache) >= _MAXCACHE:
_cache.clear()
_cache[cachekey] = p
return p
I still often pre-...
Is there a point to minifying PHP?
...er named HipHop that transforms PHP source into C++ code. Rasmus Lerdorf, one of the big PHP guys did a presentation for Digg earlier this year that covers the performance improvements given by HipHop. In short, it's not too much faster than optimizing code and using a bytecode cache. HipHop is o...
Does Java have a complete enum for HTTP response codes?
...
I don't think there's one that's complete in the standard Java classes; HttpURLConnection is missing quite a few codes, like HTTP 100/Continue.
There's a complete list in the Apache HttpComponents, though:
org.apache.http.HttpStatus (replaced o...
How do you unit test a Celery task?
...aly do 2 different test sessions when working with celery tasks. The first one (as I'm suggesting bellow) is completely synchronous and should be the one that makes sure the algorithm does what it should do. The second session uses the whole system (including the broker) and makes sure I'm not havin...
Core pool size vs maximum pool size in ThreadPoolExecutor
... maxPoolSize, then create a new Thread if Total task queue is full and new one is arriving.
Form doc:
(If there are more than corePoolSize but less than maximumPoolSize threads running, a new thread will be created only if the queue is full.)
Now, Take a simple example,
ThreadPoolExecutor executo...
How do I use NSTimer?
How do I use an NSTimer ? Can anyone give me step by step instructions?
6 Answers
6
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How do I write data into CSV format as string (not file)?
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@Marboni: StringIO is gone in Python 3 (which is what my solution is written in), and I can't reproduce that error in Python 2.7.3 - although I do get a TypeError in the writer.writerow(...) line (unicode argument expected, got 'str'). Will look in...
Catch browser's “zoom” event in JavaScript
...tempt to implement it.
I’ve found two ways of detecting the
zoom level. One way to detect zoom
level changes relies on the fact that
percentage values are not zoomed. A
percentage value is relative to the
viewport width, and thus unaffected by
page zoom. If you insert two elements,
one with a pos...
C dynamically growing array
...hat is). There's no built-in dynamic array in C, you'll just have to write one yourself. In C++, you can use the built-in std::vector class. C# and just about every other high-level language also have some similar class that manages dynamic arrays for you.
If you do plan to write your own, here's so...
:: (double colon) operator in Java 8
...
Usually, one would call the reduce method using Math.max(int, int) as follows:
reduce(new IntBinaryOperator() {
int applyAsInt(int left, int right) {
return Math.max(left, right);
}
});
That requires a lot of syntax...