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When should I use a struct instead of a class?

... MSDN has the answer: Choosing Between Classes and Structures. Basically, that page gives you a 4-item checklist and says to use a class unless your type meets all of the criteria. Do not define a structure unless the type has all of the following characterist...
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How to revert initial git commit?

I commit to a git repository for the first time; I then regret the commit and want to revert it. I try 9 Answers ...
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jquery live hover

...ery 1.4.1 now supports "hover" for live() events, but only with one event handler function: $("table tr").live("hover", function () { }); Alternatively, you can provide two functions, one for mouseenter and one for mouseleave: $("table tr").live({ mouseenter: function () { }, mous...
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On design patterns: When should I use the singleton?

...ptable" reasons to use a Singleton. One reason that tends to come up over and over again on the internets is that of a "logging" class (which you mentioned). In this case, a Singleton can be used instead of a single instance of a class because a logging class usually needs to be used over and over ...
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Proper way to use **kwargs in Python

... I like to use positional arguments only for required arguments, and kwargs for arguments that may or may not be specified, but it is helpful to have a default value. kwargs is nice because you can submit your args in any order you choose. Positional arguments don't give you that freedom...
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JPA eager fetch does not join

... JPA's fetch strategy control? I can't detect any difference between eager and lazy. In both cases JPA/Hibernate does not automatically join many-to-one relationships. ...
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How to wait for all threads to finish, using ExecutorService?

... Basically on an ExecutorService you call shutdown() and then awaitTermination(): ExecutorService taskExecutor = Executors.newFixedThreadPool(4); while(...) { taskExecutor.execute(new MyTask()); } taskExecutor.shutdown(); try { taskExecutor.awaitTermination(Long.MAX_VALUE,...
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Android Studio Collapse definitions and methods

How can I collapse all definitions and methods within the Android Studio editor? 14 Answers ...
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Check if a string is html or not

...se. If you use a < b && a > c the browser will turn the > and < characters into > and < entities appropriately. If, instead, you use a<b && a>c the browser will interpret the markup as a<b && a>c</b> because the lack of a space mean...
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Is there a native jQuery function to switch elements?

... I like this option the best! Simple and nicely compatible. Allthough i like to use el1.insertBefore(el2) and el1.insertAfter(el2) for readability. – Maurice Feb 1 '12 at 13:43 ...