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Getters \ setters for dummies
... 456, _c : 789,
getA : function(){ return this._a; },
getB : ..., getC : ..., setA : ..., setB : ..., setC : ...
};
For the above examples, the internal property names are abstracted with an underscore in order to discourage users from simply doing foo.bar vs. foo.get( 'bar' ) and getting ...
Why does Clojure have “keywords” in addition to “symbols”?
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It seems keywords are more useful as keys in hashmaps etc as they don't change once evaluated: (eval (eval ':a)) vs (eval (eval ''a)). Are there other advantages? Performance wise, they are identical?
– kristianlm
Aug 3 '12 at 19:56
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What's the difference between libev and libevent?
...nc i/o scheduling, and both engages epoll on linux, and kqueue on FreeBSD, etc.
2 Answers
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Why doesn't Python have a sign function?
...didn't agree on what it should return in all the edge cases (+/-0, +/-nan, etc)
So they decided to implement only copysign, which (although more verbose) can be used to delegate to the end user the desired behavior for edge cases - which sometimes might require the call to cmp(x,0).
I don't know...
How does origin/HEAD get set?
...commit it points to changes if that branch changes, which might happen on fetch/pull/remote update.)
Edit: The problem discussed below was corrected in Git 1.8.4.3; see this update.
There is a tiny caveat, though. HEAD is a symbolic ref, pointing to a branch instead of directly to a commit, bu...
What is the Invariant Culture?
...tion where you need to generate controller names, URL's, delegate names ...etc. and need things to act naturally and universally among all users.
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Using an RDBMS as event sourcing storage
...wered Aug 6 '17 at 23:53
cdmdotnetcdmdotnet
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Control the size of points in an R scatterplot?
... ways to make that look nice - alpha adjustments, hex bins, contour plots, etc. Check out pages 72-77 of the ggplot2 book, if there's one in your library or if your library has electronic access to Springer books (I think most of the R books are in there).
– Matt Parker
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Django: How to completely uninstall a Django app?
...sary model in models.py
delete all import link in views.py, admin.py end etc.
delete all link's in urls.py on your unnecessary app's
in database delete unnecessary tables wich associated with the app (I do it with help program "Valentina Studio")
delete app's folder
in command line do it: py...
Why doesn't Objective-C support private methods?
...why alter the semantics of the language, as well as the compiler, runtime, etc., to add a feature that's already emulated in an acceptable way? As noted in other answers, the message-passing semantics -- and their reliance on runtime reflection -- would make handling "private" messages non-trivial.
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