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What is the most efficient way to concatenate N arrays?
....push(...b)
However, it seems that for large arrays (of the order of 100,000 members or more), the technique passing an array of elements to push (either using apply() or the ECMAScript 2015 spread operator) can fail. For such arrays, using a loop is a better approach. See https://stackoverflow.co...
Sort a text file by line length including spaces
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Fast! Did 465,000 line file (one word per line) in <1 second, when output redirected into another file - thus: cat testfile.txt | perl -e 'print sort { length($a) <=> length($b) } <>' > out.txt
– css...
How to Find And Replace Text In A File With C#
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@Banshee Touche' I just tried to read 9,000,000 rows and was thrown a System out of memory exception.
– Squ1rr3lz
Aug 6 '15 at 0:22
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When to use -retainCount?
...choose to use values like these as flags, given that it would take almost 3000 years to get a retainCount as high as the larger number, assuming you incremented the retainCount 100,000,000 times per second.
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Why do people say there is modulo bias when using a random number generator?
...which is 3 bits. Unfortunately, 3 random bits yields 8 possible outcomes:
000 = 0, 001 = 1, 010 = 2, 011 = 3
100 = 4, 101 = 5, 110 = 6, 111 = 7
We can reduce the size of the outcome set to exactly 6 by taking the value modulo 6, however this presents the modulo bias problem: 110 yields a 0, and 1...
OwinStartup not firing
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Make the first line System.Threading.Sleep(10_000) so it will wait long enough for the debugger to attach before continuing (adjust as needed)
– James Gray
Oct 21 '17 at 4:18
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Best way to store JSON in an HTML attribute?
...tacks.
In any case, the following escaping table will work:
NUL -> \u0000
CR -> \n or \u000a
LF -> \r or \u000d
" -> \u0022
& -> \u0026
' -> \u0027
+ -> \u002b
/ -> \/ or \u002f
< -> \u003c
> -> \u003e
\ -> \\ or \u005c
U+2028 -> \u2028
U+2029 -> \...
Convert bytes to a string
... just did a simple benchmark with these other answers, running multiple 10,000 runs stackoverflow.com/a/3646405/353094 And the above solution was actually much faster every single time. For 10,000 runs in Python 2.7.7 it takes 8ms, versus the others at 12ms and 18ms. Granted there could be some v...
Differences between C++ string == and compare()?
...code in Release environment, both are pretty much the same.
FYI, I ran 1,000,000 iteration in order to come up with such conclusion.
In order to prove why in debug environment the string::compare is faster, I went to the assembly and here is the code:
DEBUG BUILD
string::operator==()
i...
How to get current time and date in Android
...me value is only precise to one second; the milliseconds portion is always 000. If in a loop you do
Time time = new Time(); time.setToNow();
Log.d("TIME TEST", Long.toString(time.toMillis(false)));
... do something that takes more than one millisecond, but less than one second ...
The resultin...