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Singletons vs. Application Context in Android?
...believe that if you do need to manage app-global state, it should go here, nowhere else. For anything else, rethink if you really need a singleton object, or if it would also be possible to rewrite your singleton class to instead instantiate small, short-lived objects that perform the task at hand.
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Is there any way to enforce typing on NSArray, NSMutableArray, etc.?
...to allow compile-time static type checking (so the compiler could let you know if you try to add an object it knows is a different class through that method), but there's no real way to enforce that an array only contains objects of a given class.
In general, there doesn't seem to be a need for su...
What is the purpose of the “final” keyword in C++11 for functions?
... of the language in a way that could cause any problem, so I don't really know how usefull that error might be. On the contrary, forgetting the virtual can cause errors, and C++11 added the override tag to a function that will detect that situation and fail to compile when a function that is meant t...
How do I make the return type of a method generic?
...this method generic so I can return a string, bool, int, or double? Right now, it's returning a string, but if it's able find "true" or "false" as the configuration value, I'd like to return a bool for example.
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msbuild.exe staying open, locking files
... Makes sense: it doesn't seem to happen if I remove /m. I'm trying now with /m /nr:false, I'll run for a few builds and see how it goes. Thanks
– gregmac
Oct 13 '10 at 0:26
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Making the Android emulator run faster
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UPDATE: Now that an Intel x86 image is available, the best answer is by zest above.
As CommonsWare has correctly pointed out, the emulator is slow because it emulates an ARM CPU, which requires translation to Intel opcodes. This vir...
html5 - canvas element - Multiple layers
...text.fillStyle = 'yellow';
context.fillRect(0,0,600,250);
// Now return the globalCompositeOperation to source-over and draw a
// blue rectangle
context.globalCompositeOperation = 'source-over';
// Draw a blue rectangle
context.fillStyle = 'blue';
context.fil...
Java Embedded Databases Comparison [closed]
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Java DB (Sun's distribution of Apache Derby) now ships in JDK 6!
I've been wanted to do something like Jason Cohen and have been thinking this looks like the easiest way being in the JDK distro (which of last week is now a requirement for my app). Or maybe I am just...
Formatting a number with exactly two decimals in JavaScript
... cases, it doesn't work.
For instance:
2.005.toFixed(2) === "2.00"
UPDATE:
Nowadays, you can use the Intl.NumberFormat constructor. It's part of the ECMAScript Internationalization API Specification (ECMA402). It has pretty good browser support, including even IE11, and it is fully supported in Node...
In Git, how can I write the current commit hash to a file in the same commit
I'm trying to do a fancy stuff here with Git hooks, but I don't really know how to do it (or if it's possible).
7 Answers
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