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How do you test functions and closures for equality?

...as kind of devastating because I had been storing closures in an Array and now can't remove them with indexOf({$0 == closure} so I have to refactor. IMHO optimization shouldn't influence language design, so without a quick fix like the now deprecated @objc_block in matt's answer, I would argue that...
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ElasticSearch: Unassigned Shards, how to fix?

...ate" command has changed to provide more options - the example above would now be "allocate_empty_primary", omitting the "allow_primary" parameter. – jmb May 8 '17 at 14:58 4 ...
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What's the difference between the atomic and nonatomic attributes?

.../nonatomic/retain/assign/copy are merely advisory. (Note: @synthesize is now the default behavior in recent versions of LLVM. There is also no need to declare instance variables; they will be synthesized automatically, too, and will have an _ prepended to their name to prevent accidental direct ...
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What are some (concrete) use-cases for metaclasses?

...Having said that, Python 3.6 introduced the much simpler init_subclass, so now you can manipulate subclasses in a baseclass, and no longer need a metaclass for that purpose. – Dan Gittik Jun 10 '18 at 20:38 ...
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Finding the index of an item in a list

...ist in order, until it finds a match. If your list is long, and you don't know roughly where in the list it occurs, this search could become a bottleneck. In that case, you should consider a different data structure. Note that if you know roughly where to find the match, you can give index a hint. F...
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Replace all non Alpha Numeric characters, New Lines, and multiple White Space with one Space

...e made the change you suggested. I had tested with the brackets before and now I see it works without them. Happy New Year to you, too. – T-CatSan Jan 1 '14 at 2:44 ...
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Is Chrome's JavaScript console lazy about evaluating arrays?

... explains this issue: https://bugs.webkit.org/show_bug.cgi?id=35801 (EDIT: now fixed!) There appears to be some debate regarding just how much of a bug it is and whether it's fixable. It does seem like bad behavior to me. It was especially troubling to me because, in Chrome at least, it occurs wh...
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How to get notified about changes of the history via history.pushState?

So now that HTML5 introduces history.pushState to change the browsers history, websites start using this in combination with Ajax instead of changing the fragment identifier of the URL. ...
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Transposing a 2D-array in JavaScript

... can just do const transpose = apply(zip) – Guy Who Knows Stuff Apr 26 '18 at 5:09 1 Why would th...
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Installing Python packages from local file system folder to virtualenv with pip

...default answer. No need to make pip hunt around with --find-links if you know exactly where your package is on the local machine. – Robert Feb 10 at 19:33 add a comment ...