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What's the difference between “groups” and “captures” in .NET regular expressions?

...bout it. Here's what the famous Jeffrey Friedl has to say about it (pages 437+): Depending on your view, it either adds an interesting new dimension to the match results, or adds confusion and bloat. And further on: The main difference between a Group object and a Capture object is...
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How to create abstract properties in python abstract classes

... 3 Answers 3 Active ...
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New Array from Index Range Swift

... 183 This works for me: var test = [1, 2, 3] var n = 2 var test2 = test[0..<n] Your issue could...
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Reverse Range in Swift

... Update For latest Swift 3 (still works in Swift 4) You can use the reversed() method on a range for i in (1...5).reversed() { print(i) } // 5 4 3 2 1 Or stride(from:through:by:) method for i in stride(from:5,through:1,by:-1) { print(i) } // 5 4...
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How to print number with commas as thousands separators?

... commas as thousands separators. For example, I want to show the number 1234567 as 1,234,567 . How would I go about doing this? I have seen many examples on Google, but I am looking for the simplest practical way. ...
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typedef fixed length array

I have to define a 24-bit data type.I am using char[3] to represent the type. Can I typedef char[3] to type24 ? I tried it in a code sample. I put typedef char[3] type24; in my header file. The compiler did not complain about it. But when I defined a function void foo(type24 val) {} in my C...
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Search for string and get count in vi editor

... | edited Jun 3 '15 at 9:51 Martin Tournoij 22.1k1717 gold badges8585 silver badges116116 bronze badges ...
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Return multiple values in JavaScript?

... 1380 No, but you could return an array containing your values: function getValues() { return [...
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Why is address zero used for the null pointer?

... | edited May 3 '10 at 17:44 answered May 3 '10 at 17:22 ...
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rails 3 validation on uniqueness on multiple attributes

I use Rails 3.0.0.beta4 3 Answers 3 ...