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instanceof Vs getClass( )

I see gain in performance when using getClass() and == operator over instanceOf operator. 4 Answers ...
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Is it necessary to explicitly remove event handlers in C#

I have a class that offers up a few events. That class is declared globally but not instanced upon that global declaration--it's instanced on an as-needed basis in the methods that need it. ...
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Why is Scala's immutable Set not covariant in its type?

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What is the fundamental difference between WebSockets and pure TCP?

I've read about WebSockets and I wonder why browser couldn't simply open trivial TCP connection and communicate with server like any other desktop application. And why this communication is possible via websockets? ...
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Getting vertical gridlines to appear in line plot in matplotlib

I want to get both horizontal and vertical grid lines on my plot but only the horizontal grid lines are appearing by default. I am using a pandas.DataFrame from an sql query in python to generate a line plot with dates on the x-axis. I'm not sure why they do not appear on the dates and I have trie...
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What is @RenderSection in asp.net MVC

What is the purpose of @RenderSection and how does it function? I understand what bundles do, but I have yet to figure out what this does and it's probably important. ...
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What is the canonical way to check for errors using the CUDA runtime API?

Looking through the answers and comments on CUDA questions, and in the CUDA tag wiki , I see it is often suggested that the return status of every API call should checked for errors. The API documentation contains functions like cudaGetLastError , cudaPeekAtLastError , and cudaGetErrorString , b...
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What is meant by “managed” vs “unmanaged” resources in .NET?

What is meant by the terms managed resource and unmanaged resource in .NET? How do they come into the picture? 5 Answers ...
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Can you use hash navigation without affecting history?

I'm afraid it might be impossible but is there a way to change the hash value of a URL without leaving an entry in the browser's history and without reloading ? Or do the equivalent? ...
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Necessary to add link tag for favicon.ico?

Are there any modern browsers that won't detect the favicon.ico automatically? Is there any reason to add the link tag for favicon.ico? ...