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What's the difference between findAndModify and update in MongoDB?
... do I need to return the item first? I read the MongoDB: the definitive guide and it says that it is handy for manipulating queues and performing other operations that need get-and-set style atomicity. But I didn't understand how it achieves this. Can somebody explain this to me?
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Argparse: Way to include default values in '--help'?
...uding a minimal reproducible example that demonstrates the problem. As I said, it works for me with Python 2.7.
– Martijn Pieters♦
Apr 7 '16 at 20:00
3
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HTML5shiv vs Dean Edwards IE7-js vs Modernizr - which to choose?
...onality to IE.
As far as I'm aware there's no cross-over between them (aside from html5shiv/modernizr), so you can use any combination of them, depending on what features you need to implement.
While I'm on the subject, and since you're asking about tools to make IE more compatible with other bro...
Using {} in a case statement. Why?
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The {} denotes a new block of scope.
Consider the following very contrived example:
switch (a)
{
case 42:
int x = GetSomeValue();
return a * x;
case 1337:
int x = GetSomeOtherValue(); //ERROR
return a * x;
}
You will get a ...
Regular expression matching a multiline block of text
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This solution worked beautifully. As an aside, I apologize, since I obviously didn't clarify the situation enough (and also for the lateness of this reply). Thanks for your help!
– Jan
Mar 3 '09 at 22:18
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Better way of getting time in milliseconds in javascript?
...t likely due to garbage collection. Typically garbage collection can be avoided by reusing variables as much as possible, but I can't say specifically what methods you can use to reduce garbage collection pauses.
share
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Why do function pointer definitions work with any number of ampersands '&' or asterisks '*'?
...oo) is implicitly convertible to a pointer to the function. This is why void (*p1_foo)() = foo; works: foo is implicitly converted into a pointer to itself and that pointer is assigned to p1_foo.
The unary &, when applied to a function, yields a pointer to the function, just like it yields th...
Heroku “psql: FATAL: remaining connection slots are reserved for non-replication superuser connectio
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Also a common problem is something like that client side app crashing and leaving connections open and then opening new ones when it restarts. If this kind of thing happens a lot then you'll run out of connections. Or the app is just configured improperly and opens too many c...
Objective-C implicit conversion loses integer precision 'NSUInteger' (aka 'unsigned long') to 'int'
... You are right that casting the result of indexOfObject: would be a bad idea. My answer was meant for the specific code in the question, and the count method cannot return NSNotFound. I did not recommend to cast to int or ignore warnings generally. Sorry if that was unclear. In fact your sample c...
Apply CSS styles to an element depending on its child elements
...f you could do something like div[div.a] or div:containing[div.a] as you said, but this isn't possible.
You may want to consider looking at jQuery. Its selectors work very well with 'containing' types. You can select the div, based on its child contents and then apply a CSS class to the parent all...