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.NET - Dictionary locking vs. ConcurrentDictionary
... Or, what if two customers reaches for the same item at the same time, who wins? Will there be a fight? This is a non-threadsafe-collection. There's plenty of ways to avoid problems, but they all require some kind of locking, or rather explicit access in some way or another.
On the other hand, cons...
__proto__ VS. prototype in JavaScript
...otype
– Niko Bellic
Aug 19 '15 at 2:10
11
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Comparing mongoose _id and strings
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answered Mar 28 '17 at 10:27
Dila GurungDila Gurung
1,2981515 silver badges2020 bronze badges
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Difference between a “coroutine” and a “thread”?
...cify when co-routines can switch.
With a lot of routines doing very small bits of work and voluntarily switching between each other, you've reached a level of efficiency no scheduler could ever hope to achieve. You can now have thousands of coroutines working together as opposed to tens of threads....
Running Windows batch file commands asynchronously
... actually had trouble with this the other day. I had to launch 30 explorer windows for a performance test. Didn't work and it wasn't important enough for me to look into it.. started browsing around instead in that window and several hours later when I closed it, another one poped up! And I was like...
How to remove unused C/C++ symbols with GCC and ld?
...d libgcc with the flag -static. The linker option -strip-all helps quite a bit, but still the generated executable (or dll) is about 4 way bigger than what Visual Studio would generate. Point is, I have no control on how libstdc++ was compiled. There should be a ld only option.
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When would anyone use a union? Is it a remnant from the C-only days?
...ce.
Use case 1: the chameleon
With unions, you can regroup a number of arbitrary classes under one denomination, which isn't without similarities with the case of a base class and its derived classes. What changes, however, is what you can and can't do with a given union instance:
struct Batman;
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C# binary literals
...riday
}
Original Post
Since the topic seems to have turned to declaring bit-based flag values in enums, I thought it would be worth pointing out a handy trick for this sort of thing. The left-shift operator (<<) will allow you to push a bit to a specific binary position. Combine that with t...
Should I use alias or alias_method?
...o.
– Joshua Pinter
Apr 22 '14 at 16:10
4
expecting that methods are defined on the fly during run...
Javascript calculate the day of the year (1 - 366)
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@AlexTurpin, @T30: I know this is a bit old, but if you were wondering... the problem is caused because of Daylight Savings Time starting in March. This is because when you take the difference of a midnight of a date before DST and midnight of a date after DST...