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How to watch for array changes?

...ent } return n; } }); 1 Alternatively, if you'd like to target all arrays, you could override Array.prototype.push(). Use caution, though; other code in your environment may not like or expect that kind of modification. Still, if a catch-all sounds appealing, just replace myArray with Ar...
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Which method performs better: .Any() vs .Count() > 0?

...le<T> sequence. For just IEnumerable<T>, then Any() will generally be quicker, as it only has to look at one iteration. However, note that the LINQ-to-Objects implementation of Count() does check for ICollection<T> (using .Count as an optimisation) - so if your underlying data-sou...
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How to disable GCC warnings for a few lines of code

...n GCC and Clang. Consider the following Makefile CPPFLAGS:=-std=c11 -W -Wall -pedantic -Werror .PHONY: all all: puts for building the following puts.c source code #include <stdio.h> int main(int argc, const char *argv[]) { while (*++argv) puts(*argv); return 0; } It will not c...
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What does the restrict keyword mean in C++?

... A restrict-qualified pointer (or reference)... ! ...is basically a promise to the compiler that for the scope of the pointer, the target of the pointer will only be accessed through that pointer (and pointers copied from it). In C++ compilers that support it i...
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DataSet panel (Report Data) in SSRS designer is gone

... select the report. If the UI has to be dumbed down let it be dumbed down all the way – user919426 Mar 25 '14 at 7:32 ...
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A simple explanation of Naive Bayes Classification

... & part two being the confusion surrounding Training set. In general all of Machine Learning Algorithms need to be trained for supervised learning tasks like classification, prediction etc. or for unsupervised learning tasks like clustering. During the training step, the algorithms are taught...
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Average of 3 long integers

... This code will work, but isn't that pretty. It first divides all three values (it floors the values, so you 'lose' the remainder), and then divides the remainder: long n = x / 3 + y / 3 + z / 3 + ( x % 3 + y % 3 + z % 3 )...
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Explicitly calling return in a function or not

...ek from the R core team (I believe) for recommending a user to explicitly calling return at the end of a function (his comment was deleted though): ...
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Why does this go into an infinite loop?

... Note: Originally I posted C# code in this answer for purposes of illustration, since C# allows you to pass int parameters by reference with the ref keyword. I've decided to update it with actual legal Java code using the first MutableInt...
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Code Golf: Lasers

...is sitting on top of now. Since the laser emitter is to be treated like a wall, set this to be a wall to begin with. if (tr/v<^/>v</) { my $o; $o .= "\n" while s/.$/$o .= $&, ""/meg; tr,/\\,\\/, for $o, $s; $_ = $o; } If the laser beam is pointing any way except right, rotate...