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Task vs Thread differences [duplicate]

...d is a lower-level concept: if you're directly starting a thread, you know it will be a separate thread, rather than executing on the thread pool etc. Task is more than just an abstraction of "where to run some code" though - it's really just "the promise of a result in the future". So as some diff...
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Memcached vs. Redis? [closed]

We're using a Ruby web-app with Redis server for caching. Is there a point to test Memcached instead? 17 Answers ...
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Understanding how recursive functions work

As the title explains I have a very fundamental programming question which I have just not been able to grok yet. Filtering out all of the (extremely clever) "In order to understand recursion, you must first understand recursion." replies from various online threads I still am not quite getting it....
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Do we need semicolon at the end? [duplicate]

I missed semicolons in some of the places in my JavaScript, but its not throwing error in any of the browsers. Is the ; at the end needed? ...
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How often should you use git-gc?

How often should you use git-gc? 10 Answers 10 ...
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How do you prevent IDisposable from spreading to all your classes?

...d to be disposed, like AutoResetEvent, and the most efficient way is to do it in the Dispose() method to avoid the overhead of finalizers. But this method must be called somehow, so exactly as in your example the classes that encapsulate or contain IDisposable have to dispose these, so they have to ...
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Is delete this allowed?

Is it allowed to delete this; if the delete-statement is the last statement that will be executed on that instance of the class? Of course I'm sure that the object represented by the this -pointer is new ly-created. ...
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What does a Ajax call response like 'for (;;); { json data }' mean? [duplicate]

...I'm confused on the for (;;); part in the beginning of response. What is it used for? 5 Answers ...
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Why em instead of px?

I heard you should define sizes and distances in your stylesheet with em instead of in pixels. So the question is why should I use em instead of px when defining styles in css? Is there a good example that illustrates this? ...
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What is the difference between public, protected, package-private and private in Java?

...rotected and private , while making class and interface and dealing with inheritance? 29 Answers ...