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How to create a trie in Python
...
Have a look at this:
https://github.com/kmike/marisa-trie
Static memory-efficient Trie structures for Python (2.x and 3.x).
String data in a MARISA-trie may take up to 50x-100x less memory than
in a standard Python dict; the raw lookup...
How to round up a number to nearest 10?
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floor() will go down.
ceil() will go up.
round() will go to nearest by default.
Divide by 10, do the ceil, then multiply by 10 to reduce the significant digits.
$number = ceil($input / 10) * 10;
Edit: I've been doing it this way fo...
How to round a number to n decimal places in Java
...double values. That is fine if you don't care much whether it rounds up or down. But if you want accurate rounding, then you need to take the expected accuracy of the values into account. Floating point values have a binary representation internally. That means that a value like 2.7735 does not actu...
Advantages of using prototype, vs defining methods straight in the constructor? [duplicate]
...nswered Dec 22 '10 at 11:13
Tim DownTim Down
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How do I list all versions of a gem available at a remote site?
...eUploader: {
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Mailto links do nothing in Chrome but work in Firefox?
...it down to the fact that my link was within an iframe, and my web app uses https. Chrome was blocking it due to this (Chrome would open other mailto links outside of the iframe).
In mailto link not working within a frame chrome (over https), kendsnyder mentioned simply changing
<a href="mailto...
Output array to CSV in Ruby
...h do |row|
csvfile << row.values
end
end
Updated the gist at https://gist.github.com/tamouse/4647196
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RESTful Login Failure: Return 401 or Custom Response
... hence 401 is the wrong error code in my opinion
As per the standard here https://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
*10.4.2 401 Unauthorized
The request requires user authentication. The response MUST include a WWW-Authenticate header field (section 14.47) containing a challenge app...
Reading GHC Core
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In Ruby on Rails, what's the difference between DateTime, Timestamp, Time and Date?
...ted range: ‘1000-01-01 00:00:00′ to
‘9999-12-31 23:59:59′
source: https://www.dbrnd.com/2015/09/difference-between-datetime-and-timestamp-in-mysql/#:~:text=DATETIME%20vs%20TIMESTAMP%3A,DATETIME%20is%20constant.
Also...
table with different column "date" types and corresponding rails migrati...