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Fast and responsive interactive charts/graphs: SVG, Canvas, other?
...of the problem leads to a basic problem of computational geometry, namely: range searching and another one of computer graphics: level of detail.
To solve your performance problem you need to implement a good preprocessor which is able to find very fast which stars to display and is perhaps able to...
List of ANSI color escape sequences
...in and Paul Kay used data collected from twenty different languages from a range of language families to identify eleven possible basic color categories: white, black, red, green, yellow, blue, brown, purple, pink, orange, and gray.
Berlin and Kay found that, in languages with fewer than the maximum...
How does Spring Data JPA differ from Hibernate for large projects?
...tting it in a service doesn't make the most sense. This is easy to do with raw Hibernate, but I don't see a good way to do with Spring JPA. I'm going to mark your answer as correct though because it's correct. That's basically what you can do with Spring Data JPA. I think I'll stick with Hibernate t...
在 App Inventor 2 中使用图像 · App Inventor 2 中文网
...×4 = 104 Megabytes. Typical amounts of memory available to a running app range anywhere from 20 to 50 Megabytes (not to mention that MIT App Inventor requires the app source file, including images, to be less than 5 Megabytes). So the app will simply not work, and the project will get an OutOfMe...
How to perform Callbacks in Objective-C
...ere's an example that keeps the concepts of delegates out, and just does a raw call back.
@interface Foo : NSObject {
}
- (void)doSomethingAndNotifyObject:(id)object withSelector:(SEL)selector;
@end
@interface Bar : NSObject {
}
@end
@implementation Foo
- (void)doSomethingAndNotifyObject:(id)obje...
Apache and Node.js on the Same Server
... static content. Node is fast, powerful, elegant, and a sexy tool with the raw power of V8 and a flat stack with no in-built dependencies.
I also want the ease/flexibility of Apache and yet the grunt and elegance of Node.JS, why can't I have both?
Fortunately with the ProxyPass directive in the A...
Foreign Key to non-primary key
...when you terminate the room to a date, and re-establish it with a new date range, RM_UID is newid(), and the RM_ApertureID from the previous entry becomes the new RM_ApertureID.
So, if that's the case, RM_ApertureID is a non-unique field, and so you can't set a foreign-key in another table.
And t...
What does FETCH_HEAD in Git mean?
...for alternate ref backends, read them from a file generically in refs_read_raw_ref().
With Git 2.29 (Q4 2020), Updates to on-demand fetching code in lazily cloned repositories.
See commit db3c293 (02 Sep 2020), and commit 9dfa8db, commit 7ca3c0a, commit 5c3b801, commit abcb7ee, commit e5b9421, com...
Is D a credible alternative to Java and C++? [closed]
...ell-defined subset of the language. It's still hard to beat C++ when both raw performance and small memory usage are required.
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DateTime vs DateTimeOffset
...ght to midnight, but these represent a near-infinite number of overlapping ranges on the instantaneous timeline. (In practice we have a finite number of timezones, but you can express offsets down to the tick) So in these situations, make sure you understand how to either limit the "who's asking?"...