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What is the difference between map and flatMap and a good use case for each?
... a simple - flat - one dimensional structure, by removing ALL the internal groupings
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What is the difference between exit and return? [duplicate]
...re doing that. On POSIX systems, the true system call is _exit(2) or exit_group(2), and the library function is exit(3). See Syscall implementation of exit() for Linux. Using _exit() directly can leave line-buffered printf output unwritten (or full-buffered if you redirected to a file).
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I don't understand -Wl,-rpath -Wl,
...c analyses arguments and if something doesn't make sense, it automatically groups.
– Blub
Jul 3 '11 at 10:59
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Why doesn't Dictionary have AddRange?
...merable extension methods:
var combined =
dict1.Union(dict2)
.GroupBy(kvp => kvp.Key)
.Select(grp => grp.First())
.ToDictionary(kvp => kvp.Key, kvp => kvp.Value);
The main trick when combining dictionaries is dealing with the duplicate keys. In the code abo...
getenv() vs. $_ENV in PHP
...5.4.24 (cli) (built: Jan 24 2014 03:51:25)
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2013 Zend Technologies
Looking at the source code for the getenv function, this is because there are three ways that PHP can fetch the environment variable:
Via sapi_getenv (e....
Is it considered bad practice to perform HTTP POST without entity body?
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I asked this question on the IETF HTTP working group a few months ago. The short answer is: NO, it's not a bad practice (but I suggest reading the thread for more details).
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Are table names in MySQL case sensitive?
...ut this statement? I guess it is on: /etc/mysql/my.cnf underneath [mysql] group. But this is not enough, still something else needs to be done (besides of course restart mysql...
– Alg_D
Feb 5 '16 at 12:22
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.net localhost website consistently making get arterySignalR/poll?transport=longPolling&connectionTo
... year. It should be fixed in a future stable release. Discussion over here groups.google.com/forum/#!topic/google-chrome-developer-tools/…
– Alexander van Trijffel
Jul 25 '16 at 11:01
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How do you split a list into evenly sized chunks?
...n (recipes for itertools):
from itertools import izip, chain, repeat
def grouper(n, iterable, padvalue=None):
"grouper(3, 'abcdefg', 'x') --> ('a','b','c'), ('d','e','f'), ('g','x','x')"
return izip(*[chain(iterable, repeat(padvalue, n-1))]*n)
The current version, as suggested by J.F....
What's the difference between SCSS and Sass?
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Similarity to standard CSS may be more important in group environments where there are people who need to read your code, but only occasionally, and they don't have time/interest to learn a whole new syntax.
– c roald
Aug 16 '14 at 21:25
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