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Why use String.Format? [duplicate]

Why would anyone use String.Format in C# and VB .NET as opposed to the concatenation operators ( & in VB, and + in C#)? ...
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Where should Rails 3 custom validators be stored?

I've seen docs/websites show that custom validators should go in a /lib or /lib/validators directory of a project. I've found (by reading an answer to another post) that they only seem to work in config/initializers . Does anyone know, or have a pointer to official documentation that shows wher...
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What is the difference between Directory.EnumerateFiles vs Directory.GetFiles?

What is the difference between Directory.EnumerateFiles vs GetFiles ? 3 Answers 3 ...
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How to catch an Exception from a thread

... edited Jul 1 at 23:04 torno 41699 silver badges2323 bronze badges answered Jul 1 '11 at 12:52 Dan Cru...
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String representation of an Enum

...vate readonly int value; public static readonly AuthenticationMethod FORMS = new AuthenticationMethod (1, "FORMS"); public static readonly AuthenticationMethod WINDOWSAUTHENTICATION = new AuthenticationMethod (2, "WINDOWS"); public static readonly AuthenticationMethod SINGLESIGNON = new...
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What is a “slug” in Django?

...s a way of generating a valid URL, generally using data already obtained. For instance, a slug uses the title of an article to generate a URL. I advise to generate the slug by means of a function, given the title (or another piece of data), rather than setting it manually. An example: <title&gt...
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Auto line-wrapping in SVG text

...1, the currently implemented spec. You should rather use HTML via the <foreignObject/> element. <svg ...> <switch> <foreignObject x="20" y="90" width="150" height="200"> <p xmlns="http://www.w3.org/1999/xhtml">Text goes here</p> </foreignObject> <text ...
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How do you format the day of the month to say “11th”, “21st” or “23rd” (ordinal indicator)?

... // https://github.com/google/guava import static com.google.common.base.Preconditions.*; String getDayOfMonthSuffix(final int n) { checkArgument(n >= 1 && n <= 31, "illegal day of month: " + n); if (n >= 11 && n <= 13) { ...
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Why can't I use background image and color together?

What I am trying to do is to show both background-color and background-image , so that half of my div will cover the right shadow background image, and the other left part will cover the background color. ...
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How do I parse command line arguments in Java?

... Check these out: http://commons.apache.org/cli/ http://www.martiansoftware.com/jsap/ http://picocli.info/ Or roll your own: http://docs.oracle.com/javase/7/docs/api/java/util/Scanner.html For instance, this is how you use commons-cli to parse 2 string argu...