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Loading basic HTML in Node.js
...
I just found one way using the fs library. I'm not certain if it's the cleanest though.
var http = require('http'),
fs = require('fs');
fs.readFile('./index.html', function (err, html) {
if (err) {
throw err;
}
http.createServer(function(request, re...
What is Java String interning?
...gs will ensure that all strings having same contents share same memory. So if you have list of names where 'john' appears 1000 times, by interning you ensure only one 'john' is actually allocated memory.
This can be useful to reduce memory requirements of your program. But be aware that the cache i...
Is the C# static constructor thread safe?
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Note that if your singleton object is immutable, using a mutex or any synchronization mechanism is an overkill and should not be used. Also, I find the above sample implementation extremely brittle :-). All code using Singleton.Acquir...
What is the size of an enum in C?
...ating a set of enum values, but I need each enum value to be 64 bits wide. If I recall correctly, an enum is generally the same size as an int; but I thought I read somewhere that (at least in GCC) the compiler can make the enum any width they need to be to hold their values. So, is it possible to h...
I want to get the type of a variable at runtime
...stance, may want not to know what is the type of the variable, but to know if the type of the value is some specific type, such as this:
val x: Any = 5
def f[T](v: T) = v match {
case _: Int => "Int"
case _: String => "String"
case _ => "Unknown"
}
f(x)
Here it doesn't m...
Converting newline formatting from Mac to Windows
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For anyone that comes across this now, the Homebrew formula is now called dos2unix. You'll want to brew install dos2unix.
– Geoff
Apr 26 '16 at 19:06
...
Zip lists in Python
...ip(a, b, c)
In [4]: len(result[0])
Out[4]: 3
Of course, this won't work if the lists were empty to start with.
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Java: int array initializes with nonzero elements
...n Windows (for similar versions of JDK). Additionally it would be nice to know when this bug will be fixed.
There is only advice at the moment: do not use JDK1.7.0_04 or later if you depend on JLS for newly declared arrays.
Update at October 5:
In the new Build 10 of the JDK 7u10 (early access) r...
How to convert JSON to XML or XML to JSON?
... do the conversion and was considering skipping the c# middle objects, but now not so sure. I would need to generate c# objects based on the XSD otherwise and since it would be purely only for conversion purposes it seemed like a wasted layer (and effort). If you have examples or more detail of ho...
libunwind链接时报错：undefined reference to `_Ux86_64_init_local\' - ...
libunwind链接时报错：undefined reference to `_Ux86_64_init_local'编译安装libunwind后，代码编译链接时报错：undefined reference to `_Ux86_64_init_local& 39;，链接选项加了 -lunwind，仍然报错。原因：编译出来的libunwind拆分成了很多个 编译安装libunwi...