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Disable single warning error
...d I tried to read between the lines and solve his actual problem (arriving one minute after your comment :P).
– Matteo Italia
Aug 23 '11 at 10:18
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How to verify an XPath expression in Chrome Developers tool or Firefox's Firebug?
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Just one warning on XPath and browsers, as this leads to lots of confusion: stackoverflow.com/questions/18241029/…
– Jens Erat
Mar 22 '14 at 6:52
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How do I get the current time zone of MySQL?
Anyone knows if there is such a function in MySQL?
17 Answers
17
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John Carmack's Unusual Fast Inverse Square Root (Quake III)
...) , including a strange 0x5f3759df constant. See the code below. Can someone explain line by line what exactly is going on here and why this works so much faster than the regular implementation?
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Read first N lines of a file in python
...rmance to be similar, maybe the first to be slightly faster. But the first one won't work if the file doesn't have at least N lines. You are best to measure the performance against some typical data you will be using it with.
– John La Rooy
Nov 20 '09 at 0:47
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Redis is single-threaded, then how does it do concurrent I/O?
...lients by executing several flows corresponding to those clients with only one computation unit. In this context, parallelism would mean the server is able to perform several things at the same time (with multiple computation units), which is different.
For instance a bartender is able to look afte...
Change Name of Import in Java, or import two classes with the same name
...t two classes with the same name and use both of them unqualified.
Import one class and use the fully qualified name for the other one, i.e.
import com.text.Formatter;
private Formatter textFormatter;
private com.json.Formatter jsonFormatter;
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Are there pronounceable names for common Haskell operators? [closed]
... (as it is the same as Control.Monad.ap)
$ (none, just as " " [whitespace])
. pipe to a . b: "b pipe-to a"
!! index
! index / strict a ! b: "a index b", foo !x: foo strict x
<|> or / alternative expr <|> term: "expr or term...
Markdown vs markup - are they related?
...y the same thing? Are they related? Please explain. If I want to implement one or the other in a web project (like stackoverflow) what do I need to use?
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C dynamically growing array
...hat is). There's no built-in dynamic array in C, you'll just have to write one yourself. In C++, you can use the built-in std::vector class. C# and just about every other high-level language also have some similar class that manages dynamic arrays for you.
If you do plan to write your own, here's so...