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Regex to remove all (non numeric OR period)

... "joe ($3,004.50)" to be filtered down to 3004.50 but am terrible at regex and can't find a suitable solution. So only numbers and periods should stay - everything else filtered. I use C# and VS.net 2008 framework 3.5 ...
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What does 'synchronized' mean?

I have some questions regarding the usage and significance of the synchronized keyword. 17 Answers ...
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How to get duplicate items from a list using LINQ? [duplicate]

... .ToList(); The GroupBy groups the elements that are the same together, and the Where filters out those that only appear once, leaving you with only the duplicates. share | improve this answer ...
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What is the purpose of willSet and didSet in Swift?

...seems to be that sometimes, you need a property that has automatic storage and some behavior, for instance to notify other objects that the property just changed. When all you have is get/set, you need another field to hold the value. With willSet and didSet, you can take action when the value is mo...
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How Drupal works? [closed]

...it's procedural PHP it's purely event/listener driven in its architecture, and there's no simple "flow" in the main PHP script for you to look though. I recently did a presentation on this very subject, and the slides are posted on slideshare, but a quick high-level summary may be useful. Drupal's...
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How to create a .NET DateTime from ISO 8601 format

... This solution makes use of the DateTimeStyles enumeration, and it also works with Z. DateTime d2 = DateTime.Parse("2010-08-20T15:00:00Z", null, System.Globalization.DateTimeStyles.RoundtripKind); This prints the solution perfectly. ...
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Regex how to match an optional character

...{3})([A-Z]{3})([A-Z]{3})\s+([A-Z])[0-9]{3}([0-9]{4})([0-9]{2})([0-9]{2}) And, since in most regex dialects, \d is the same as [0-9]: ^(\d{5})+\s+([A-Z]?)\s+([A-Z])(\d{3})(\d{3})([A-Z]{3})([A-Z]{3})\s+([A-Z])\d{3}(\d{4})(\d{2})(\d{2}) But: do you really need 11 separate capturing groups? And if ...
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Static member initialization in a class template

...: doesn't it violate the one definition rule ? – Alexandre C. Jul 12 '10 at 15:49 7 ...
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Rotating and spacing axis labels in ggplot2

... In the newest version of ggplot2 the command would be: q + theme(axis.text.x=element_text(angle = -90, hjust = 0)) – rnorberg Sep 28 '12 at 13:18 ...
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How do you run your own code alongside Tkinter's event loop?

My little brother is just getting into programming, and for his Science Fair project, he's doing a simulation of a flock of birds in the sky. He's gotten most of his code written, and it works nicely, but the birds need to move every moment . ...