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When is it appropriate to use UDP instead of TCP? [closed]

Since TCP guarantees packet delivery and thus can be considered "reliable", whereas UDP doesn't guarantee anything and packets can be lost. What would be the advantage of transmitting data using UDP in an application rather than over a TCP stream? In what kind of situations would UDP be the better c...
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Fast permutation -> number -> permutation mapping algorithms

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Repeat String - Javascript

...aviour due to JS's type juggling. for example: "my string".repeat("6") == "61" – nickf May 19 '09 at 2:28 19 ...
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What is the correct way to create a single-instance WPF application?

... 61 MSDN actually has a sample application for both C# and VB to do exactly this: http://msdn.micro...
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Is it necessary to write HEAD, BODY and HTML tags?

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How to parse freeform street/postal address out of text, and into components

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C++ templates Turing-complete?

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Best way to work with dates in Android SQLite [closed]

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Use of 'const' for function parameters

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Should I use px or rem value units in my CSS? [closed]

I am designing a new website and I want it to be compatible with as much browsers and browser settings as possible. I am trying to decide what unit of measurement I should use for the sizes of my fonts and elements, but am unable to find a conclusive answer. ...