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Loading/Downloading image from URL on Swift
... is updated when the dequeued cell is returned. If process #1 takes longer then process #2, process #2 will show its image and it will then later be updated by process #1 even though that image is no longer valid for the user.
– Paul Peelen
Aug 2 '15 at 22:25
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Why is String.chars() a stream of ints in Java 8?
...char)i, this will automatically box it into a Stream<Character>, and then we can do what we want, and still use method references as a plus.
Be aware though that you must do mapToObj, if you forget and use map, then nothing will complain, but you will still end up with an IntStream, and you m...
Using LIMIT within GROUP BY to get N results per group?
... |
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And then you could use FIND_IN_SET, that returns the position of the first argument inside the second one, eg.
SELECT FIND_IN_SET('2006', '2006,2003,2008,2001,2007,2009,2002,2004,2005,2000');
1
SELECT FIND_IN_SET('2009', '2006,...
How to detect if a function is called as constructor?
...NOTE: The return value is not discarded; if the return value is an Object, then that object is returned instead of the 'this'.
– Claudiu
Dec 22 '08 at 19:38
2
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Sync data between Android App and webserver [closed]
...y to easily solve this pattern. You'll need to register user accounts, and then Android will perform lots of magic for you, and allow you to automatically sync. Here's a good tutorial: http://www.c99.org/2010/01/23/writing-an-android-sync-provider-part-1/
As for how you identify if the records ar...
Homebrew install specific version of formula?
.../usr/local/Cellar/postgresql/9.3.1. Only symbolic links to this folder are then installed globally. In principle, this makes it pretty easy to switch between two installed versions. (*)
If you have been using homebrew for longer and never removed older versions (using, for example brew cleanup), ch...
What is copy-on-write?
...everyone has a single shared copy of the same data until it's written, and then a copy is made. Usually, copy-on-write is used to resolve concurrency sorts of problems. In ZFS, for example, data blocks on disk are allocated copy-on-write; as long as there are no changes, you keep the original bloc...
Why does installing Nokogiri on Mac OS fail with libiconv is missing?
... command tools to allow you to install libiconv.
xcode-select --install
then install a newer version of libiconv
brew install libiconv
then install your gem
gem install nokogiri -- --with-iconv-dir=/usr/local/Cellar/libiconv/1.14
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Python read-only property
...itself. You say that users should be responsible and use things correctly, then you say that sometimes it does not make sense for an attribute to be settable and getter property is a preffered way. In my opinion you can or can't set attribute. Only question is if I should protect this attr or leave ...
Difference between “on-heap” and “off-heap”
...e in memory where your dynamically allocated objects live. If you used new then it's on the heap. That's as opposed to stack space, which is where the function stack lives. If you have a local variable then that reference is on the stack.
Java's heap is subject to garbage collection and the objects ...