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Get the value of an instance variable given its name

... The most idiomatic way to achieve this is: some_object.instance_variable_get("@#{name}") There is no need to use + or intern; Ruby will handle this just fine. However, if you find yourself reaching into another object and pulling out its ivar, there's a reasonably good ...
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What's the advantage of a Java enum versus a class with public static final fields?

...ing to work more in Java. I expected to learn that enums in Java were basically equivalent to those in C# but apparently this is not the case. Initially I was excited to learn that Java enums could contain multiple pieces of data which seems very advantageous ( http://docs.oracle.com/javase/tutorial...
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How do I use itertools.groupby()?

I haven't been able to find an understandable explanation of how to actually use Python's itertools.groupby() function. What I'm trying to do is this: ...
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How do I set a textbox's text to bold at run time?

... RegisterEvents(); } private void RegisterEvents() { _tboTest.TextChanged += new EventHandler(TboTest_TextChanged); } private void TboTest_TextChanged(object sender, EventArgs e) { // Change the text to bold on specified condition if (_tboTest.Text....
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How to completely remove a dialog on close

... If you are using a div from the DOM, so not dynamically created, use .empty(). Then you can reuse it, if you fill the contents again offcourse. – KoalaBear Jul 15 '13 at 21:14 ...
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RichTextBox (WPF) does not have string property “Text”

... @alvinmeimoun Actually, Paragraph() had a Paragraph(Inline) overload at least since .NET 3.5 (and Run(string) was also valid - it's even in the example). – Dragomok Jan 6 '17 at 9:57 ...
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Create folder with batch but only if it doesn't already exist

... @jpmc26 You are right, a trailing slash does the job and is actually preferable since it works with quotes (thus allowing you to have spaces in the directory path). To distinguish between either file/directory, this will work: if exist "a" if not exist "a\" (echo "it's a file") else (echo...
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Reading header data in Ruby on Rails

..."Cookie"] New way: request.headers["HTTP_COOKIE"] To get a Hash with all headers of the request. request.headers share | improve this answer | follow |...
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Does MSTest have an equivalent to NUnit's TestCase?

...t has the DataSource attribute, which will allow you to feed it a database table, csv, xml, etc. I've used it and it works well. I don't know of a way to put the data right above as attributes as in your question, but it's very easy to set up the external data sources and files can be included in ...
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How to get the connection String from a database

...From Other Sources -> From SQL Server put in the server name, select table, etc, When you get to the "Import Data" dialog, click on Properties in the "Connection Properties" dialog, select the "Definition" tab. And there Excel nicely displays the Connection String for copying (or ev...