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Best way to check if a Data Table has a null value in it

... an "Extensions" folder in some common library or in my DAL. Create a file called "DataTableExtensions.cs" and add that method. Next you would just add "using Name.Space.Extensions" to your cs files and have access to all extension methods defined. – hunter Jan...
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Allow CORS REST request to a Express/Node.js application on Heroku

... In my case, next POST is not being called after sending back res.send(200) when req.method == 'OPTIONS'. am I missing anything else ? – Aldo Nov 22 '12 at 17:03 ...
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What does this square bracket and parenthesis bracket notation mean [first1,last1)?

...d, This side of the interval is open. An interval with mixed states is called "half-open". For example, the range of consecutive integers from 1 .. 10 (inclusive) would be notated as such: [1,10] Notice how the word inclusive was used. If we want to exclude the end point but "cover" the sam...
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How to count items in JSON object using command line?

...wn the array within the returned json and then pipe that in to a second jq call to get its length. Suppose it was in a property called records, like {"records":[...]}. $ curl https://my-source-of-json.com/list | jq -r '.records' | jq length 2 $ ...
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Sleep Command in T-SQL?

... In order to "mock" an external service that is slow, I want to be able to call a SQL server with a script that runs slowly, but isn't actually processing a ton of stuff. ...
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Why cast an unused function parameter value to void?

...a pointer to that function is passed to another function that expects this calling convention. However not all arguments used by the calling convention are actually needed in the function itself. The reason for mentioning the parameter name in the body is to avoid warnings like unused.c: In funct...
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What does jQuery.fn mean?

... Is this guaranteed to be true? Can I assume a call to jQuery.prototype is exactly the same as jQuery.fn? My worry is if jQuery does some magic when you call .fn then they aren't interchangeable – Brandon Feb 24 '12 at 14:08 ...
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Why does AuthorizeAttribute redirect to the login page for authentication and authorization failures

... default namespace (this is very important) then the compiler will automatically pick it up instead of MVC's standard one. Of course, you could always give the attribute a new name if you'd rather take that approach. [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, Inherited = true...
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Releasing memory in Python

...intains a freelist with its own allocated memory, and clearing it requires calling PyInt_ClearFreeList(). This can be called indirectly by doing a full gc.collect. Try it like this, and tell me what you get. Here's the link for psutil.Process.memory_info. import os import gc import psutil proc =...
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Differences between Proxy and Decorator Pattern

...tee. Decorator is a strict subset of Proxy, but a Decorator might still be called a Proxy depending on whether the underlying API is guaranteed to be the same. – cdunn2001 Aug 27 '15 at 23:28 ...