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Cleanest way to toggle a boolean variable in Java?

...t of my programmer friends. Your answer ought to be merged with the chosen one, together they are pure perfection. – matt lohkamp Jan 7 '09 at 6:39 6 ...
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Practicing BDD with python [closed]

... your default database for testing. This interesting design choice cost me one production database :( – Rachel Sep 26 '12 at 7:49 3 ...
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Count number of occurrences of a given substring in a string

... count is obviously for non-overlapping matches - which is most often what one wants to do. stackoverflow.com/questions/5616822/… deals with overlapping matches - but a simple, if expensive, expression is: sum("GCAAAAAGH"[i:].startswith("AAA") for i in range(len("GCAAAAAGH"))) ...
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Remove duplicate lines without sorting [duplicate]

...--reverse and --unique in the same sort command doesn't return the results one might expect. Apparently, sort does a premature optimization by 1st applying --unique on the input (in order to reduce processing in subsequent steps). This removes data needed for the --reverse step too early. To fix thi...
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How can I get a favicon to show up in my django app?

... One lightweight trick is to make a redirect in your urls.py file, e.g. add a view like so: from django.views.generic.base import RedirectView favicon_view = RedirectView.as_view(url='/static/favicon.ico', permanent=True) u...
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What are the differences between double-dot “..” and triple-dot “…” in Git diff commit ranges?

... your work on bar has introduced, while ignoring everything that has been done on foo in the mean time. That's all you need to know about the .. and ... notations in git diff. However... ... a common source of confusion here is that .. and ... mean subtly different things when used in a command su...
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What are the differences between GPL v2 and GPL v3 licenses? [closed]

...e cure of violations I agree with the comment about consulting a lawyer (one who knows about software license issues, though). In doing these things (and more), they more than doubled the length of the GPL. Although GPLv3 is a complex legal document, it was designed to be read and reasonably under...
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Deleting Objects in JavaScript

... remaining references would be dangling, like a C++ delete. (And accessing one of them would cause a crash. To make them all turn null would mean having extra work when deleting or extra memory for each object.) Since Javascript is garbage collected, you don't need to delete objects themselves - th...
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How to revert a “git rm -r .”?

... To regain some single files or folders one may use the following git reset -- path/to/file git checkout -- path/to/file This will first recreate the index entries for path/to/file and recreate the file as it was in the last commit, i.e.HEAD. Hint: one may pass...
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How do I manually create a file with a . (dot) prefix in Windows? For example, .htaccess

... I did not know that. So one can simple create the file by typing ".htaccess." in explorer, and the last dot will be removed automatically. Nice. – foens Mar 14 '13 at 9:18 ...