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How to determine if a number is a prime with regex?
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I actually wrote a blog post explaining this with more detail: Demystifying The Regular Expression That Checks If A Number Is Prime.
– Illya Gerasymchuk
Sep 8 '16 at 12:16
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Travel/Hotel API's? [closed]
...> “CSV format” (you may get XML as well)
If you are interested in details, you may find the sample Python code to filter CSV file to get hotels for a specific city here:
http://mikhail.io/2012/05/17/api-to-get-the-list-of-hotels/
Update:
Unfortunately, HotelsCombined.com has introduced t...
How do I comment out a block of tags in XML?
...at style of comment across multiple lines (which exists also in HTML)
<detail>
<band height="20">
<!--
Hello,
I am a multi-line XML comment
<staticText>
<reportElement x="180" y="0" width="200" height="20"/>
<text...
mysql - how many columns is too many?
...o from "ToothExtractionRecord" if your domain model requires such level of detail. But that's YOUR (and, dare I say, rather contrived) example - it has nothing to do with my point: large number of columns in a table does NOT mean table is denormalized. Think real estate contracts / purchase orders ...
ArithmeticException: “Non-terminating decimal expansion; no exact representable decimal result”
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where 2 is the scale and RoundingMode.HALF_UP is rounding mode
For more details see this blog post.
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What is /dev/null 2>&1?
...s is a Pseudo-devices special file.
Command ls -l /dev/null will give you details of this file:
crw-rw-rw-. 1 root root 1, 3 Mar 20 18:37 /dev/null
Did you observe crw? Which means it is a pseudo-device file which is of character-special-file type that provides serial access.
/dev/null accep...
How to move files from one git repo to another (not a clone), preserving history
...here's no way you could use them to accomplish this.
You could refine the details, of course - some of your cloning and branching wasn't strictly necessary - but the overall approach is good! It's a shame it's complicated, but of course, the point of git isn't to make it easy to rewrite history.
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Simplest way to wait some asynchronous tasks complete, in Javascript?
... forEach method happens async. So if the object list was longer than the 3 detailed here, could it not be the case that when async.parallel(calls, function(err, result) is evaluated calls doesn't yet contain all of the functions in the original list?
– Martin Beeby
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UnicodeDecodeError: 'ascii' codec can't decode byte 0xd1 in position 2: ordinal not in range(128)
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More detailed. People often find causal details helpful. And your code works btw, no derogation intended.
– Temi Fakunle
Jul 13 '17 at 9:21
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What Process is using all of my disk IO
... journal process), and kdmflush are constantly block your Linux.
For more details this URL could be helpful: Linux Wait-IO Problem
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