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How do I create a class instance from a string name in ruby?
...uts three.class # => Class
three.new.say_hi # => "say hi"
In ruby 2.0 and, possibly earlier releases, Object.const_get will recursively perform a lookup on a namespaces like Foo::Bar. The example above is when the namespace is known ahead of time and highlights the fact that const_get can b...
How to do version numbers? [closed]
... Semi-Semantic Versioning.
Basically it builds off of Semantic Versioning 2.0 but is not quite as strict.
Semi-Semantic Version Segments:
<primary.release.segment>[-<pre.release.segment>][+<post.release.segment>]
Primary Release Segment Format:
MARKETTING.MAJOR.MINOR.PAT...
Does Python have a package/module management system?
... neglect (ie. not shipping with a package manager for 14 years from Python 2.0 to Python 3.3) did damage to the community. I describe both below.
Outstanding frustrations
It's important to understand that while experienced users are able to work around these frustrations, they are significant barr...
“’” showing on page instead of “ ' ”
...9-1, you would likely have seen ââ¬â¢ instead.
I am using ASP.NET 2.0 with a database.
This is most likely where your problem lies. You need to verify with an independent database tool what the data looks like.
If the ’ character is there, then you aren't connecting to the database corre...
Call ASP.NET function from JavaScript?
...cky though... :)
i. In your code file (assuming you are using C# and .NET 2.0 or later) add the following Interface to your Page class to make it look like
public partial class Default : System.Web.UI.Page, IPostBackEventHandler{}
ii. This should add (using Tab-Tab) this function to your code fi...
In log4j, does checking isDebugEnabled before logging improve performance?
...bugEnabled() to improve the performance.
https://logging.apache.org/log4j/2.0/manual/api.html#Java_8_lambda_support_for_lazy_logging
import java.util.logging.Logger;
...
Logger.getLogger("hello").info(() -> "Hello " + name);
...
.gitignore exclude folder but include specific subfolder
...
Commit 59856de from Karsten Blees (kblees) for Git 1.9/2.0 (Q1 2014) clarifies that case:
gitignore.txt: clarify recursive nature of excluded directories
An optional prefix "!" which negates the pattern; any matching file excluded by a previous pattern will become included a...
How can I make Array.Contains case-insensitive on a string array?
...NET 3.5 or higher, needing:
using System;
using System.Linq;
But: in .NET 2.0 the simple Contains() method (without taking case insensitivity into account) is at least possible like this, with a cast:
if ( ((IList<string>)mydotNet2Array).Contains(“str”) )
{}
As the Contains() method is ...
JSR-303 @Valid annotation not working for list of child objects
...Map<>();
//...
}
Also see what's new in Bean Validation 2.0/Jakarta Bean Validation.
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ASP.NET web.config: configSource vs. file attributes
...he file specified in configSource on a Configuration.Save call.
since .NET 2.0
System.Configuration.ConfigurationErrorsException is thrown if config source file does not exist.
The file attribute specifies an external file containing custom settings like you do in the appSettings entry of the web....