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What is the difference between concurrency and parallelism?

... Concurrency is when two or more tasks can start, run, and complete in overlapping time periods. It doesn't necessarily mean they'll ever both be running at the same instant. For example, multitasking on a single-core machine. Parallelism is when tas...
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How useful/important is REST HATEOAS ( maturity level 3)?

...es much of it's work flow to the server, and acts upon the results is much more robust to server changes than a client that does not. But most folks don't need that flexibility. They're writing server code for 2 or 3 departments, it's all internal use. If it breaks, they fix it, and they've factore...
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How does StartCoroutine / yield return pattern really work in Unity?

...calculates the next value in the sequence (returning false if there are no more values), and Current retrieves the value it calculated. Ordinarily, if you wanted to implement an interface, you’d have to write a class, implement the members, and so on. Iterator blocks are a convenient way of i...
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What are good alternatives to SQL (the language)? [closed]

...ect join syntax would be different, functions like GROUP_CONCAT would have more regular syntax rather than sticking more keywords in the middle of the parentheses to control its behavior... create your own laundry list of inconsistencies and redundancies in SQL that you'd like/expect to see smoothed...
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Are GUID collisions possible?

... Actually that isn't true any more. It was true for v1 GUIDs, but not for the current v4 ones. See en.wikipedia.org/wiki/Globally_Unique_Identifier#Algorithm for more info. – Greg Beech Oct 8 '08 at 23:10 ...
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Is there Unicode glyph Symbol to represent “Search” [closed]

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Breaking/exit nested for in vb.net

...s is usually considered to be OK, especially if the alternative is to have more complicated code. For Each item In itemList For Each item1 In itemList1 If item1.Text = "bla bla bla" Then Goto end_of_for End If Next Next end_of_for: Dummy outer block Do For...
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Create a unique number with javascript time

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What does the Ellipsis object do?

...-party library, which adds a multidimensional array type. Since there are more than one dimensions, slicing becomes more complex than just a start and stop index; it is useful to be able to slice in multiple dimensions as well. E.g., given a 4x4 array, the top left area would be defined by the slic...
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A worthy developer-friendly alternative to PayPal [closed]

...se I think they are expensive and it doesn't work in all countries. Furthermore, I think that the API is sufficient, but could be better. The API documentation, however, is total utter crap . ...