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mongoose vs mongodb (nodejs modules/extensions), which better? and why?
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I'm building new app and designing now structure of it, here are some thoughts about why to use or not to use mongoose:
Mongoose will be slower (for big apps)
Mongoose is harder with more complicated queries
There will be situations when yo...
Client-server synchronization pattern / algorithm?
...eral use cases.
Synchronize changes. Your change-log (or delta history) approach looks good for this. Clients send their deltas to the server; server consolidates and distributes the deltas to the clients. This is the typical case. Databases call this "transaction replication".
Client has lost...
Xcode 4 - “Valid signing identity not found” error on provisioning profiles on a new Macintosh insta
I had a Macintosh I used to develop iPhone apps with using XCode 4.
I now have a new Macintosh with a new install of... everything.
...
SSO with CAS or OAuth?
...entralizes authentication. Use it if you want all your (probably internal) applications to ask users to login to a single server (all applications are configured to point to a single CAS server).
OpenID decentralizes authentication. Use it if you want your application to accept users login to whate...
Custom HTTP headers : naming conventions
...standard, removing the "X-" prefix breaks backwards compatibility, forcing application protocols to support both names (E.g, x-gzip & gzip are now equivalent). So, the official recommendation is to just name them sensibly without the "X-" prefix.
Update 2: On June 2012, the deprecation of rec...
Android Studio Gradle Configuration with name 'default' not found
I am having problems compiling my app with Android Studio (0.1.5).
The app uses 2 libraries which I have included as follows:
...
Where does the iPhone Simulator store its data?
I have a SQLite DB that I'm using to store app data, and I could do with taking a look inside it to debug a problem I'm having - but where does the iPhone Simulator store its data, typically?
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Microsoft Web API: How do you do a Server.MapPath?
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You can use HostingEnvironment.MapPath in any context where System.Web objects like HttpContext.Current are not available (e.g also from a static method).
var mappedPath = System.Web.Hosting.HostingEnvironment.MapPath("~/SomePath");
See also What is the ...
How to resize the iPhone/iPad Simulator?
...or using terminal commands
Close/Quit simulator. (if open)
Open Terminal app (using Spotlight search, Press ⌘ + SPACE to open spotlight search)
Copy following text and paste it next to terminal cursor.
defaults write ~/Library/Preferences/com.apple.iphonesimulator SimulatorWindowLastScale "0.3...
String concatenation in Ruby
... the usual way
With string interpolation
source = "#{ROOT_DIR}/#{project}/App.config"
with +
source = "#{ROOT_DIR}/" + project + "/App.config"
The second method seems to be more efficient in term of memory/speed from what I've seen (not measured though). All three methods will throw an uniniti...