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How should I ethically approach user password storage for later plaintext retrieval?
As I continue to build more and more websites and web applications I am often asked to store user's passwords in a way that they can be retrieved if/when the user has an issue (either to email a forgotten password link, walk them through over the phone, etc.) When I can I fight bitterly against thi...
Is null check needed before calling instanceof?
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This answer is more correct than try it because current behavior is not the same as guaranteed behavior.
– Luke
Jan 8 '13 at 19:08
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Convert duration to hours:minutes:seconds (or similar) in Rails 3 or Ruby
...f you want H:M:S format, Option3 if you want H:M:S format and there can be more than 24 hours
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Relative imports in Python 3
...ort as_int
...although, if it's not unique, or your package structure is more complex, you'll need to include the directory containing your package directory in PYTHONPATH, and do it like this...
from mypackage.mymodule import as_int
...or if you want it to work "out of the box", you can frob t...
CSS for grabbing cursors (drag & drop)
...equivalent cursors for other browsers? Do I have to do something a little more custom than standard CSS cursors?
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Why do I need to explicitly push a new branch?
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For the questioner's more general case of a new branch 'new_branch', you would use git push --set-upstream origin new_branch or git push -u origin new_branch for short. The -all that the questioner used bypassed naming a specific new branch by in...
Java Logging vs Log4J [closed]
...ns, go with Log4j. If you answer a definite no to all of them, JUL will be more than adequate and it's conveniently already included in the SDK.
That said, pretty much every project these days seems to wind up including log4j, if only because some other library uses it.
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Why does PostgreSQL perform sequential scan on indexed column?
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If the SELECT returns more than approximately 5-10% of all rows in the table, a sequential scan is much faster than an index scan.
This is because an index scan requires several IO operations for each row (look up the row in the index, then ret...
Google Maps API 3 - Custom marker color for default (dot) marker
... of creating markers is deprecated as of 14th March 2019. It won't work anymore: error502
– Jonny
Mar 19 '19 at 14:42
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