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Is key-value observation (KVO) available in Swift?
...mework can help you accomplish what you wanted, rather than using KVO
Yes and no. KVO works on NSObject subclasses much as it always has. It does not work for classes that don't subclass NSObject. Swift does not (currently at least) have its own native observation system.
(See comments for how to ...
hasNext in Python iterators?
...course, not difficult to write an adaptor that stores the result of next() and provides has_next() and move_next().
– avakar
Dec 24 '12 at 21:10
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What does the number in parentheses shown after Unix command names in manpages mean?
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It's the section that the man page for the command is assigned to.
These are split as
General commands
System calls
C library functions
Special files (usually devices, those found in /dev) and drivers
File formats and conventions
Games and screensavers
Miscellanea
Sys...
How to convert OutputStream to InputStream?
I am on the stage of development, where I have two modules and from one I got output as a OutputStream and second one, which accepts only InputStream . Do you know how to convert OutputStream to InputStream (not vice versa, I mean really this way) that I will be able to connect these two part...
Good or bad practice? Initializing objects in getter
... has to take into consideration the impacts this solution has.
Background and explanation:
Concrete implementation:
Let's first look at your concrete sample and why I consider its implementation naive:
It violates the Principle of Least Surprise (POLS). When a value is assigned to a property, it...
What is the definition of “interface” in object oriented programming
Ok, a friend of mine go back and forth on what "interface" means in programming.
16 Answers
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How to delete/create databases in Neo4j?
...raph database Neo4j like in MySQL? Or, at least, how to delete all nodes and relationships of an existing graph to get a clean setup for tests, e.g., using shell commands similar to rmrel or rm ?
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Which kind of pointer do I use when?
...wrote C++ for a living, std::auto_ptr was all the std lib had available, and boost::shared_ptr was all the rage. I never really looked into the other smart pointer types boost provided. I understand that C++11 now provides some of the types boost came up with, but not all of them.
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How to close IPython Notebook properly?
... notebook as a single-user application, where the user is free to stop it, and as a multi-user server, where only an admin should be able to stop it. We haven't quite worked out how to handle the differences yet.
(For future readers, this is the situation with 0.12 released and 0.13 in development....
Re-doing a reverted merge in Git
...owever, the time has come to merge 28s into develop , but git-merge command sees the original merge, and happily announces that all is well and branches have been already merged. What do I do now? Create a 'Revert "Revert "28s -> develop"" ' commit? Doesn't seem to be a good way to do it, but I c...