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Possible to iterate backwards through a foreach?
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Sometimes you don't have the luxury of indexing, or perhaps you want to reverse the results of a Linq query, or maybe you don't want to modify the source collection, if any of these are true, Linq can help you.
A Linq extension ...
Can you split a stream into two streams?
...uld you iterate over one without needing to generate the other at the same time? A stream can only be operated over once.
However, if you want to dump them into a list or something, you could do
stream.forEach((x) -> ((x == 0) ? heads : tails).add(x));
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How to deal with SettingWithCopyWarning in Pandas?
...= value instead
The "XY Problem": What am I doing wrong?
A lot of the time, users attempt to look for ways of suppressing this exception without fully understanding why it was raised in the first place. This is a good example of an XY problem, where users attempt to solve a problem "Y" that is ...
What is the difference between Bower and npm?
... Bower for the packages that you want to publish on your webpages (e.g. runtime, where you avoid duplication), and use npm for other stuff, like testing, building, optimizing, checking, etc. (e.g. development time, where duplication is of less concern).
Update for npm 3:
npm 3 still does things di...
How to implement classic sorting algorithms in modern C++?
...ndation, for which the brevity is unsurpassed, although its clarity is sometimes disputed.
Scott Meyers's "Distinguish () and {} when creating objects" and consistently choose braced-initialization {} instead of the good old parenthesized initialization () (in order to side-step all most-vexing-pars...
Get HTML5 localStorage keys
I'm just wondering how to get all key values in localStorage .
12 Answers
12
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MySQL maximum memory usage
...ight be to close the database connection in your DBAL or to lower the wait_timeout to free those threads.
If you catch my drift -- there's really a lot, lot to read up on and learn.
Engines
Table engines are a pretty important decision, many people forget about those early on and then suddenly fi...
PostgreSQL wildcard LIKE for any of a list of words
...y slower on large tables (91.5 million records in my case). I was seeing a time increase of about 2x when using either of these. Any idea why that might be?
– sage88
Sep 7 '17 at 5:07
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How to open a file for both reading and writing?
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r+ is the canonical mode for reading and writing at the same time. This is not different from using the fopen() system call since file() / open() is just a tiny wrapper around this operating system call.
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Practical uses for AtomicInteger
I sort of understand that AtomicInteger and other Atomic variables allow concurrent accesses. In what cases is this class typically used though?
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