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How to check whether a string is a valid HTTP URL?

... Try this to validate HTTP URLs (uriName is the URI you want to test): Uri uriResult; bool result = Uri.TryCreate(uriName, UriKind.Absolute, out uriResult) && uriResult.Scheme == Uri.UriSchemeHttp; Or, if you want to accept both HT...
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Can't pickle when using multiprocessing Pool.map()

...2,3], [4,5,6])) See: What can multiprocessing and dill do together? and: http://matthewrocklin.com/blog/work/2013/12/05/Parallelism-and-Serialization/ >>> import pathos.pools as pp >>> p = pp.ProcessPool(4) >>> >>> def add(x,y): ... return x+y ... >>&...
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How to parse a string into a nullable int

I'm wanting to parse a string into a nullable int in C#. ie. I want to get back either the int value of the string or null if it can't be parsed. ...
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Callback functions in C++

In C++, when and how do you use a callback function? 10 Answers 10 ...
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Why is it slower to iterate over a small string than a small list?

...eUploader: { brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
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Difference between classification and clustering in data mining? [closed]

Can someone explain what the difference is between classification and clustering in data mining? 21 Answers ...
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How to get the index of an item in a list in a single step?

How can I find the index of an item in a list without looping through it? 7 Answers 7 ...
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Shell Script — Get all files modified after

I'd rather not do this in PHP so I'm hoping a someone decent at shell scripting can help. 9 Answers ...
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Interface defining a constructor signature?

It's weird that this is the first time I've bumped into this problem, but: 18 Answers ...
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How to check Oracle database for long running queries

My application, which uses an Oracle database, is going slow or appears to have stopped completely. 8 Answers ...