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Given the lat/long coordinates, how can we find out the city/country?
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Another option:
Download the cities database from http://download.geonames.org/export/dump/
Add each city as a lat/long -> City mapping to a spatial index such as an R-Tree (some DBs also have the functionality)
Use nearest-neighbour search to find the closest city f...
Remove new lines from string and replace with one empty space
Want to remove all new lines from string.
19 Answers
19
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Is non-blocking I/O really faster than multi-threaded blocking I/O? How?
...re work for the scheduler.
One thread for all connections.
This takes load from the system because we have fewer threads. But it also prevents you from using the full performance of your machine, because you might end up driving one processor to 100% and letting all other processors idle around.
A f...
What is the difference between memoization and dynamic programming?
...t (which typically recurses down to solve the sub-problems).
A good slide from here (link is now dead, slide is still good though):
If all subproblems must be solved at least once, a bottom-up dynamic-programming algorithm usually outperforms a top-down memoized algorithm by a constant facto...
How to change line width in IntelliJ (from 120 character)
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You are without fault and a beautiful human being. From the depths of my heart and my soul, you have my undying gratitude, for now and always.
– Darth Egregious
Oct 5 '17 at 21:04
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What is the difference between a string and a byte string?
... the .decode() method of the byte string to get the right character string from it as above. For completeness, the .encode() method of a character string goes the opposite way:
>>> 'τoρνoς'.encode('utf-8')
b'\xcf\x84o\xcf\x81\xce\xbdo\xcf\x82'
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Show a Form without stealing focus?
...bottom right of the screen), but when I show this form it steals the focus from the main Form. Is there a way to show this "notification" form without stealing focus?
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What's the difference between 'git merge' and 'git rebase'?
...D and E are still here, but we create merge commit M that inherits changes from both D and E. However, this creates diamond shape, which many people find very confusing.
REBASE:
We create commit R, which actual file content is identical to that of merge commit M above. But, we get rid of commit ...
How to initialize an array's length in JavaScript?
...ray is filled afterwards, but the performance gain (if any) seem to differ from browser to browser.
jsLint does not like new Array() because the constructer is ambiguous.
new Array(4);
creates an empty array of length 4. But
new Array('4');
creates an array containing the value '4'.
Regardin...
POSTing JsonObject With HttpClient From Web API
I'm trying to POST a JsonObject using HttpClient from Web API. I'm not quite sure how to go about this and can't find much in the way of sample code.
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