大约有 47,000 项符合查询结果（耗时：0.0587秒） [XML]
Iterating over every two elements in a list
...works on sequences, the function works on any iterable; and this uses O(N) extra space, the function doesn't; on the other hand, this is generally faster. There are good reasons to pick one or the other; being afraid of import is not one of them.
– abarnert
Aug...
How to optimize for-comprehensions and loops in Scala?
...) with Range constants in the outermost scope. Or better, intern them like Strings literals in Java.
footnote:
Arrays were about the same as Range, but interestingly, pimping a new forall method (shown below) resulted in 24% faster execution on 64-bit, and 8% faster on 32-bit. When I reduced the...
How should I handle “No internet connection” with Retrofit on Android
...ss NoConnectivityException extends IOException {
@Override
public String getMessage() {
return "No network available, please check your WiFi or Data connection";
}
}
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How can I tell jackson to ignore a property for which I don't have control over the source code?
...e mapper.configure(DeserializationFeature.failOnUnknownPropertiesExcep(new String[] {"myField"}));
– ms_27
Aug 23 '16 at 6:23
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Detecting taps on attributed text in a UITextView in iOS
I have a UITextView which displays an NSAttributedString . This string contains words that I'd like to make tappable, such that when they are tapped I get called back so that I can perform an action. I realise that UITextView can detect taps on a URL and call back my delegate, but these aren't ...
Semi-transparent color layer over background-image?
..., so here's another option.
This one is pure CSS, and doesn't require any extra HTML.
box-shadow: inset 0 0 0 1000px rgba(0,0,0,.2);
There are a surprising number of uses for the box-shadow feature.
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Get the value of an instance variable given its name
In general, how can I get a reference to an object whose name I have in a string?
2 Answers
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What do the plus and minus signs mean in Objective-C next to a method?
...tain object instances directly using special syntax, like in the case of a string like this:
NSString *myStringInstance = @"abc";
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How do I assign a port mapping to an existing Docker container?
...) or hacking hostconfig.json file(at least not officially introduced). The extra container just exposes your business container's internal port, rather than makeing any changes to it.
– Sean C.
Mar 10 '18 at 10:59
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Visual C++: How to disable specific linker warnings?
... from the fact that it can't be turned off. (Noted here since there's zero extra information at that link.)
– Ben M
Dec 7 '12 at 21:14
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