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is there an virtual environment for node.js?
...s is your main issue, then maybe consider using the very cool 'bundle' command with npm. This is closer to freezing gems or using bundler in rails, rather than rvm.
It's super easy. Just create a package.json file:
{ "name": "yourapp", "version": "0.0.1", "dependencies": {"jade": "0.4.1"}}
and t...
C++ Singleton design pattern
... the Singleton design pattern that is lazy-evaluated, correctly-destroyed, and thread-safe.
class S
{
public:
static S& getInstance()
{
static S instance; // Guaranteed to be destroyed.
// Instantiated on first use.
...
How can I count text lines inside an DOM element? Can I?
...using:
var divHeight = document.getElementById('content').offsetHeight;
And divide by the font line height:
document.getElementById('content').style.lineHeight;
Or to get the line height if it hasn't been explicitly set:
var element = document.getElementById('content');
document.defaultView.g...
How does HTTP file upload work?
...
Let's take a look at what happens when you select a file and submit your form (I've truncated the headers for brevity):
POST /upload?upload_progress_id=12344 HTTP/1.1
Host: localhost:3000
Content-Length: 1325
Origin: http://localhost:3000
... other headers ...
Content-Type: multip...
Sort Go map values by keys
...erating over a map with a range loop, the iteration order is
not specified and is not guaranteed to be the same from one iteration
to the next. Since Go 1 the runtime randomizes map iteration order, as
programmers relied on the stable iteration order of the previous
implementation. If you require a ...
How to resolve symbolic links in a shell script
...
According to the standards, pwd -P should return the path with symlinks resolved.
C function char *getcwd(char *buf, size_t size) from unistd.h should have the same behaviour.
getcwd
pwd
...
Enterprise app deployment doesn't work on iOS 7.1
...
I found the issue by connecting the iPad to the computer and viewing the console through the XCode Organizer while trying to install the app. The error turns out to be:
Could not load non-https manifest URL: http://example.com/manifest.plist
Turns out that in iOS 7.1, the URL...
Clojure differences between Ref, Var, Agent, Atom, with examples
...here to use Ref, Var, Agent, Atom. I read book, but, still couldn't understand the real world examples.
5 Answers
...
How to unpack and pack pkg file?
...file server must replace one file in pkg.
I have a solution how unpack pkg and replace a file but I dont know how pack again to pkg.
http://emresaglam.com/blog/1035
http://ilostmynotes.blogspot.com/2012/06/mac-os-x-pkg-bom-files-package.html
...
Is it better in C++ to pass by value or pass by constant reference?
...l types, except for builtin types (char, int, double, etc.), for iterators and for function objects (lambdas, classes deriving from std::*_function).
This was especially true before the existence of move semantics. The reason is simple: if you passed by value, a copy of the object had to be made an...