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MySQL Great Circle Distance (Haversine formula)
...amp; Google Maps:
Here's the SQL statement that will find the closest 20 locations that are within a radius of 25 miles to the 37, -122 coordinate. It calculates the distance based on the latitude/longitude of that row and the target latitude/longitude, and then asks for only rows where the dist...
What are the differences between 'call-template' and 'apply-templates' in XSL?
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edited Feb 14 '15 at 22:00
Johnny Bones
8,08255 gold badges3636 silver badges9393 bronze badges
answer...
In Clojure how can I convert a String to a number?
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This will work on 10px or px10
(defn parse-int [s]
(Integer. (re-find #"\d+" s )))
it will parse the first continuous digit only so
user=> (parse-int "10not123")
10
user=> (parse-int "abc10def11")
10
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git-svn not a git command?
...s, but progress are still slow.
Update: from MSysGit1.6.2 (early March 2009), git-svn works again. See this SO question.
Update: with a modern (2017) Git for Windows 2.x, git svn is already included.
No need for sudo apt-get install git-svn, which would only be possible in a WSL (Windows Subsy...
What does the explicit keyword mean?
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edited Sep 1 at 7:07
community wiki
18 ...
What's the difference between window.location= and window.location.replace()?
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Dirty Penguin
3,25077 gold badges3535 silver badges6464 bronze badges
answered Dec 8 '09 at 9:41
cletuscletus
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Why should I use core.autocrlf=true in Git?
...n be a problem.
You code with Notepad.exe (unless you are using a Windows 10 2018.09+, where Notepad respects the EOL character detected).
Unless you can see specific treatment which must deal with native EOL, you are better off leaving autocrlf to false (git config --global core.autocrlf false)....
What are JavaScript's builtin strings?
...ttp://jsbin.com/amecoq/2. It can obfuscate any text that contains numbers [0-9], small latin letters [a-z], and spaces. The string length is limited mostly with your RAM (at least the body of my answer was successfully obfuscated). The output is supported by Chrome, Firefox, and IE.
Hint: the tool u...
Arrays, heap and stack and value types
In the above code, is new int[100] generating the array on the heap? From what I've read on CLR via c#, the answer is yes. But what I can't understand, is what happens to the actual int's inside the array. As they are value types, I'd guess they'd have to be boxed, as I can, for example, pass myInte...
Optimise PostgreSQL for fast testing
...shsafe and might eat your data.
Learning
Greg Smith's book, PostgreSQL 9.0 High Performance remains relevant despite referring to a somewhat older version. It should be a useful reference.
Join the PostgreSQL general mailing list and follow it.
Reading:
Tuning your PostgreSQL server - PostgreS...