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Convert Decimal to Double
...casts, while C# has both implicit and explicit ones.
In C# the conversion from decimal to double is explicit as you lose accuracy. For instance 1.1 can't be accurately expressed as a double, but can as a decimal (see "Floating point numbers - more inaccurate than you think" for the reason why).
In...
Java: Subpackage visibility?
...sumers of the "hidden" methods use that interface. It will not stop others from using the interface but I see no reason why you should.
For unit tests, and if it is possible without rewriting the lot, follow the suggestions to use the same package.
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What is the “reactor” in Maven?
...hem simultaneously and:
The reactor determines the correct build order from the dependencies stated by each project in their respective project descriptors, and will then execute a stated set of goals. It can be used for both building projects and other goals, such as site generation.
As expl...
How did this person code “Hello World” with Microsoft Paint?
...olors (i.e. none of them are "mandated" by the file format2, they all come from the color of each pixel), and there's a perfect 1:1 correspondence between pixel colors and bytes written in the file; thus, using perfectly chosen colors you can actually write anything you want in the file (with the ex...
Enforcing the type of the indexed members of a Typescript object?
...u.
1.2.2020 update:
I've entirely removed the pre-made mapping interfaces from my answer. @dracstaxi's answer makes them totally irrelevant. If you'd still like to use them, check the edit history.
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memory_get_peak_usage() with “real usage”
... to true the PHP DOCS say it will get the real size of memory allocated from system. If it's false it will get the memory reported by emalloc()
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What does the question mark and the colon (?: ternary operator) mean in objective-c?
... [NSString stringWithFormat: @"Status: %@", statusString] This saves you from having to use and release local variables in if-else patterns. FTW!
– Bruno Bronosky
May 6 '10 at 15:52
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How do I convert a Django QuerySet into list of dicts?
... should look like, but most likely you are referring to QuerySet.values(). From the official django documentation:
Returns a ValuesQuerySet — a QuerySet subclass that returns
dictionaries when used as an iterable, rather than model-instance
objects.
Each of those dictionaries represen...
Spring MVC: How to perform validation?
...lidates a class. Does the class have to be filled manually with the values from the user input, and then passed to the validator?
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Javascript event handler with parameters
... handler function here, you can directly refer
// to arg1 and arg2 from the parent function arguments
}, false);
}
Depending upon your exact coding situation, you can pretty much always make some sort of closure preserve access to the variables for you.
From your comments, if what you...