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What does SynchronizationContext do?

...t be executed normally, without passing it to a SynchronizationContext. In order to decide that, you must know the rules and requirements of the framework you're programming against — Windows Forms in this case. So remember this simple rule for Windows Forms: DO NOT access controls or forms from a...
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Difference between a “coroutine” and a “thread”?

... Parallelism is the simultaneous execution of multiple pieces of work in order to increase speed. —https://github.com/servo/servo/wiki/Design Short answer: With threads, the operating system switches running threads preemptively according to its scheduler, which is an algorithm in the operatin...
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Why use the SQL Server 2008 geography data type?

...jobsite) where distance < 500 * 1609.344 orderby distance select f; return q1.FirstOrDefault(); } Then there is a very good reason to use Geography. Explanation of spatial within Entity Framework. Updated with Creating High Performance Spati...
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How does python numpy.where() work?

... 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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Java OCR implementation [closed]

... 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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When should I make explicit use of the `this` pointer?

...w to treat i, since it may or may not exist in all instantiations of A. In order to tell it that i is indeed a member of A<T>, for any T, the this-> prefix is required. Note: it is possible to still omit this-> prefix by using: template<class T> struct B : A<T> { using...
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What are the disadvantages of using persistent connection in PDO

... I hope I had read this answer before running SELECT orders.* FROM orders LEFT JOIN items USING(item_id) – Ast Derek Jul 26 '10 at 18:09 31 ...
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Is there a standard naming convention for git tags? [closed]

... Prefixing 'v' is also quite useful when sorting tags in alphabetical order. Other tags may also exist; whether officially in a master repository or to track a developer's work locally. With 'v' prefixes the release tags form their own group, instead of being scattered all over the rest of the ...
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Grab a segment of an array in Java without creating a new array on heap

...rious primitive types and helps manage slicing, position, conversion, byte ordering, etc. If your bytes originate from a Stream, the NIO Buffers can use "direct mode" which creates a buffer backed by native resources. This can improve performance in a lot of cases. ...
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Can you break from a Groovy “each” closure?

...tution of the closure in question with one of Groovy's (conceptual) higher order functions. The following example: for ( i in 1..10) { if (i < 5) println i; else return} becomes (1..10).each{if (it < 5) println it} becomes (1..10).findAll{it < 5}.each{println it} which also helps ...