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Get array of object's keys
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So how did one do this before ES5?
– Andrew S
Sep 10 '18 at 13:51
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Command to get nth line of STDOUT
...wer of machines these days, they'd probably cope). Generalizing to handle one range is not wholly trivial (for range N..M, you use head -n M | tail -n M-N+1), and generalizing to handle multiple ranges is not possible.
– Jonathan Leffler
Sep 15 '09 at 22:22
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CORS: Cannot use wildcard in Access-Control-Allow-Origin when credentials flag is true
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But what if there's more than one domain?
– aroth
Oct 8 '14 at 0:57
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RESTful Alternatives to DELETE Request Body
... is the approach we ended up using after evaluating the other options mentioned in the question/answers, and after collaborating with consumers of the service.
While the use of the message body is not ideal, none of the other options were perfectly fitting either. The request body DELETE allowed us...
How do I terminate a thread in C++11?
...exception when it is to be forcefully terminated. The tricky part on this one is getting the target thread to throw this exception.
Options 1 and 2 don't leak intra-process resources, but they terminate every thread.
Option 3 will probably leak resources, but is partially cooperative in that the...
Regex group capture in R with multiple capture-groups
...act group capture from a regular expression match? As far as I can tell, none of grep , grepl , regexpr , gregexpr , sub , or gsub return the group captures.
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To switch from vertical split to horizontal split fast in Vim
... it seems like you can drop the Ctrl-w t part because if you're already in one of only two windows, what's the point of making it current?
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Convert Set to List without creating new List
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We can use following one liner in Java 8:
List<String> list = set.stream().collect(Collectors.toList());
Here is one small example:
public static void main(String[] args) {
Set<String> set = new TreeSet<>();
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Python hashable dicts
... of the __key method (in practice either approach should work, though this one might be slowed down by making an unneeded itermediate list -- fixable by s/items/iteritems/ -- assuming Python 2.* as you don't say;-).
– Alex Martelli
Jul 20 '09 at 4:48
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JPA getSingleResult() or null
... a primary key lookup technically there could be multiple results (even if one, both or the combination of your foreign keys or constraints makes this impossible in practice) so this is probably the more appropriate solution.
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