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Curious null-coalescing operator custom implicit conversion behaviour
...writing pass in C# 3.0. The bug reproduces in C# 3.0 and 4.0 but not in C# 2.0, which means that the bug was probably my bad. Sorry!
I'll get a bug entered into the database and we'll see if we can get this fixed up for a future version of the language. Thanks again everyone for your analysis; it w...
How to make inline functions in C#
...There are several syntaxes available.
Anonymous methods were added in C# 2.0:
Func<int, int, int> add = delegate(int x, int y)
{
return x + y;
};
Action<int> print = delegate(int x)
{
Console.WriteLine(x);
}
Action<int> helloWorld = delegate // parameters can be elided i...
What's the difference between libev and libevent?
...r me is the built-in OpenSSL support. Bufferevent interface, introduced in 2.0 version of libevent API, handles the secure connections almost painlessly for the developer.
May be my knowlege has gone out of date but it seems like libev does not support this.
...
Do declared properties require a corresponding instance variable?
Do properties in Objective-C 2.0 require a corresponding instance variable to be declared? For example, I'm used to doing something like this:
...
JOIN queries vs multiple queries
... two select method took 3.7 seconds for 50,000 reads whereas the JOIN took 2.0 seconds on my at-home slow computer. INNER JOIN and LEFT JOIN did not make a difference. Fetching multiple rows (e.g., using IN SET) yielded similar results.
...
Scala vs. Groovy vs. Clojure [closed]
...ithout having to learn a new syntax (assuming you know Java). As of Groovy 2.0, it also has growing support for static compilation. Groovy supports closures and has support for programming in a somewhat functional style, although it's still fairly far from the traditional definition of functional pr...
Why JavaScript rather than a standard browser virtual machine?
...pose, which is to script interactivity client side. This is why JavaScript 2.0 got such a bad rap. I mean, why packages, interfaces, classes, and the like, when those are clearly aspects of server-side languages. JavaScript is just fine as a prototype-based language, without being full-blown object ...
Browser statistics on JavaScript disabled [closed]
...l council's emergency numbers just because some crazy web-dude decided Web 2.0 was a must.
– haylem
Feb 29 '12 at 22:01
22
...
How many bytes does one Unicode character take?
...rogate pairs. (You must be thinking of the outdated UCS-2, before Unicode 2.0 came out, which encoded 16-bit code points only.) Also, Java doesn't quite use UTF-16, it uses a modified form thereof where the code point 0 is encoded differently.
– rdb
Aug 4 '14...
Select random lines from a file
...ery fast, I sampled a tab-delimited data file with 13 columns, 23.1M rows, 2.0GB uncompressed.
# randomly sample select 5% of lines in file
# including header row, exclude blank lines, new seed
time \
awk 'BEGIN {srand()}
!/^$/ { if (rand() <= .05 || FNR==1) print > "data-sample.txt"}...