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What exactly is Arel in Rails 3.0?
...d, but it can also be used as an underpinning for DataMapper, for example.
If it is a replacement for anything, it's a replacement for Ambition. Or, you can think of it as a Ruby version of the LINQ standard query operators or Python's SQLAlchemy. (In fact, the author explicitly cites both LINQ and ...
What is JNDI? What is its basic use? When is it used?
...to know the details about the connection.
This has several advantages:
If you have a deployment sequence where apps move from devl->int->test->prod environments, you can use the same JNDI name in each environment and hide the actual database being used. Applications don't have to change...
Directory does not exist. Parameter name: directoryVirtualPath
...em.Web.Optimization;
// a more fault-tolerant bundle that doesn't blow up if the file isn't there
public class BundleRelaxed : Bundle
{
public BundleRelaxed(string virtualPath)
: base(virtualPath)
{
}
public new BundleRelaxed IncludeDirectory(string directoryVirtualPath, st...
Why doesn't the JVM cache JIT compiled code?
...It's likely that these data patterns will change during the application's lifetime, rendering the cached optimisations less than optimal.
So you'd need a mechanism to establish whether than saved optimisations were still optimal, at which point you might as well just re-optimise on the fly.
...
How to serialize a JObject without the formatting?
...
Call JObject's ToString(Formatting.None) method.
Alternatively if you pass the object to the JsonConvert.SerializeObject method it will return the JSON without formatting.
Documentation: Write JSON text with JToken.ToString
...
ActionLink htmlAttributes
...
The underscore trick sounds really strange, what if you want an underscore in your html attribute?
– Michiel
Oct 16 '13 at 20:51
1
...
Static member functions error; How to properly write the signature?
...n in the function definition. And a function (definition) cannot be static if it is a class' method (declaration). Hence, you can declare it static, but not define it static. In the function definition 'static' has the same meaning as in C, which is incompatible with a class method.
...
Convert a List into an ObservableCollection
... Observable Collection constructor will take an IList or an IEnumerable.
If you find that you are going to do this a lot you can make a simple extension method:
public static ObservableCollection<T> ToObservableCollection<T>(this IEnumerable<T> enumerable)
{
retu...
How to enable assembly bind failure logging (Fusion) in .NET
...
If you have the Windows SDK installed on your machine, you'll find the "Fusion Log Viewer" under Microsoft SDK\Tools (just type "Fusion" in the start menu on Vista or Windows 7/8). Launch it, click the Settings button, and se...
Does “untyped” also mean “dynamically typed” in the academic CS world?
...tic method for proving the absence
of certain program behaviors by classifying phrases according to the
kinds of values they compute.
He also remarks:
The word “static” is sometimes added explicitly--we speak of a
“statically typed programming language,” for example--to distingu...