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Function pointers, Closures, and Lambda

I am just now learning about function pointers and, as I was reading the K&R chapter on the subject, the first thing that hit me was, "Hey, this is kinda like a closure." I knew this assumption is fundamentally wrong somehow and after a search online I didn't find really any analysis of this compari...
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The multi-part identifier could not be bound

I've seen similar errors on SO, but I don't find a solution for my problem. I have a SQL query like: 15 Answers ...
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Threading in a PyQt application: Use Qt threads or Python threads?

I'm writing a GUI application that regularly retrieves data through a web connection. Since this retrieval takes a while, this causes the UI to be unresponsive during the retrieval process (it cannot be split into smaller parts). This is why I'd like to outsource the web connection to a separate wor...
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java: ArrayList - how can i check if an index exists?

I'm using ArrayList<String> and I add data at specific indices, how can I check if a specific index exists? 11 Ans...
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LINQ: Not Any vs All Don't

Often I want to check if a provided value matches one in a list (e.g. when validating): 8 Answers ...
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How can I make setInterval also work when a tab is inactive in Chrome?

I have a setInterval running a piece of code 30 times a second. This works great, however when I select another tab (so that the tab with my code becomes inactive), the setInterval is set to an idle state for some reason. ...
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AngularJS: How can I pass variables between controllers?

I have two Angular controllers: 16 Answers 16 ...
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Simplest PHP example for retrieving user_timeline with Twitter API version 1.1

Because of the Twitter API 1.0 retirement as of June 11th 2013 , the script below does not work anymore. 14 Answers ...
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How do I create multiple submit buttons for the same form in Rails?

I need to have multiple submit buttons. 7 Answers 7 ...
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Is it better to return null or empty collection?

That's kind of a general question (but I'm using C#), what's the best way (best practice), do you return null or empty collection for a method that has a collection as a return type ? ...