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parseInt(null, 24) === 23… wait, what?
Alright, so I was messing around with parseInt to see how it handles values not yet initialized and I stumbled upon this gem. The below happens for any radix 24 or above.
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What does iterator->second mean?
...const X, Y>s. That's exactly what a map is - it pairs together the keys and the associated values.
When you iterate over a std::map, you're iterating over all of these std::pairs. When you dereference one of these iterators, you get a std::pair containing the key and its associated value.
std::...
Can you write nested functions in JavaScript?
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Yes, it is possible to write and call a function nested in another function.
Try this:
function A(){
B(); //call should be B();
function B(){
}
}
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Do regular expressions from the re module support word boundaries (\b)?
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ahh after yours and Bolo's suggestion, it was because I wasn't using a raw string. Thanks!
– D.C.
Oct 22 '10 at 8:46
9
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Class method decorator with self arguments?
...f of that. You can pass in the attribute name as a string to the decorator and use getattr if you don't want to hardcode the attribute name:
def check_authorization(attribute):
def _check_authorization(f):
def wrapper(self, *args):
print getattr(self, attribute)
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Writing your own STL Container
...erator_tag,std::forward_iterator_tag,std::bidirectional_iterator_tag,std::random_access_iterator_tag. Also note that the below is technically more strict than required, but this is the idea. Note that the vast majority of the "standard" functions are technically optional, due to the awesomeness that...
Python non-greedy regexes
... edited Apr 17 at 21:15
wjandrea
12.3k55 gold badges2424 silver badges4747 bronze badges
answered Apr 19 '09 at 23:27
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What's the difference between => , ()=>, and Unit=>
I'm trying to represent a function that takes no arguments and returns no value (I'm simulating the setTimeout function in JavaScript, if you must know.)
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VB.NET - How to move to next item a For Each Loop?
...ually this is what you want, but if not you'll have to use GetEnumerator() and then MoveNext()/Current explicitly rather than using a For Each loop.
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Match multiple cases classes in scala
I'm doing matching against some case classes and would like to handle two of the cases in the same way. Something like this:
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