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What is the 'dynamic' type in C# 4.0 used for?

... typically have to wave your hand(s) and say some magic words in the right order to get a certain type of spell going. The old API way of talking to COM objects was a lot of that, you needed to jump through a lot of hoops in order to coax the compiler to compile the code for you. Things break down ...
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How to write a scalable Tcp/Ip based server

...n time, and we don't need to use thread synchronization. However, if you reorder this to call the next receive immediately after pulling the data, which might be a little faster, you will need to make sure you properly synchronize the threads. Also, I hacked out alot of my code, but left the essen...
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Python style - line continuation with strings? [duplicate]

...e to consider performance. If you care about differences at runtime on the order of 100 ns, particularly when concatenating hard coded strings, something is wrong. – nmichaels Aug 27 '12 at 13:51 ...
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How can I set a website image that will show as preview on Facebook?

... Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity. ...
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Merging: Hg/Git vs. SVN

...om revision 2 (hello.en.txt). Handling this case is of course essential in order to support refactoring and refactoring is exactly the kind of thing you will want to do on a branch. share | improve ...
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Heap vs Binary Search Tree (BST)

...ring BST vs Heap vs Hashmap: BST: can either be either a reasonable: unordered set (a structure that determines if an element was previously inserted or not). But hashmap tends to be better due to O(1) amortized insert. sorting machine. But heap is generally better at that, which is why heapsort...
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Disable hover effects on mobile browsers

...y, you can edit your page that there is no content change. Background In order to simulate a mouse, browsers such as Webkit mobile fire the following events if a user touches and releases a finger on touch screen (like iPad) (source: Touch And Mouse on html5rocks.com): touchstart touchmove touch...
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How do I remove a MySQL database?

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PostgreSQL query to list all table names?

...l databases SELECT table_schema,table_name FROM information_schema.tables ORDER BY table_schema,table_name; share | improve this answer | follow | ...
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Does Foreign Key improve query performance?

... getting a 404 error. It's about having usable data. It's about not losing orders and financial data for reports for instance because of the incompetence of the developers. There is NO EXCUSE for not using foreign keys. – HLGEM Oct 19 '11 at 14:20 ...