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The easiest way to transform collection to array?

Suppose we have a Collection<Foo> . What is the best (shortest in LoC in current context) way to transform it to Foo[] ? Any well-known libraries are allowed. ...
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Sorting an array of objects in Ruby by object attribute?

... Is there a created_at method to access the @created_at attribute? What kind of object is @created_at? Does it define <=>? What kind of errors are you getting? etc, etc, ad nauseum. In other words, we need more detail than "but no luck for me". – rampion ...
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Usage of forceLayout(), requestLayout() and invalidate()

...equestLayout()) properly. The purpose of those methods is to tell the View what sort of invalidation (as you called it) has happened. It's not like the View decides what path to follow after you call one of those methods. The logic behind choosing the View-lifecycle-path is the choosing of the prope...
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Python error “ImportError: No module named”

... Based on your comments to orip's post, I guess this is what happened: You edited __init__.py on windows. The windows editor added something non-printing, perhaps a carriage-return (end-of-line in Windows is CR/LF; in unix it is LF only), or perhaps a CTRL-Z (windows end-of-file...
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What is the expected syntax for checking exception messages in MiniTest's assert_raises/must_raise?

What is the expected syntax for checking exception messages in MiniTest's assert_raises / must_raise ? 4 Answers ...
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Difference Between Schema / Database in MySQL

...tabases would tread full-blown databases. In fact, Oracle calls "database" what others call a server or server instance - different binaries, different executables, different ports. – Panagiotis Kanavos Feb 6 '17 at 12:46 ...
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How do I use format() on a moment.js duration?

... No easy way. I did this jsfiddle.net/fhdd8/14 , which is probably what you did, but I don't think moment has anything that does this out of the box – David Glass Feb 5 '14 at 18:11 ...
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What is the difference between inversedBy and mappedBy?

... The answers above were not sufficient for me to understand what was going on, so after delving into it more I think I have a way of explaining it that will make sense for people who struggled like I did to understand. inversedBy and mappedBy are used by the INTERNAL DOCTRINE engine ...
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Why hasn't functional programming taken over yet?

...ramming (languages), tried out Haskell as well as written one myself. From what I've seen, functional programming has several advantages over the classical imperative style: ...
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Simple way to calculate median with MySQL

What's the simplest (and hopefully not too slow) way to calculate the median with MySQL? I've used AVG(x) for finding the mean, but I'm having a hard time finding a simple way of calculating the median. For now, I'm returning all the rows to PHP, doing a sort, and then picking the middle row, but ...