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What exactly does the .join() method do?
...t array.array('c', random.sample(string.ascii_letters, 20 - len(strid)))
.tostring() + strid
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How to filter logcat in Android Studio?
...at the top right, which should be displaying No Filters by default, and choose Edit Filter Configuration and specifying what to filter on. Using this method you also save the filters and can re-use them by selecting them in the dropdown.
Screenshot:
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How do I rename the extension for a bunch of files?
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For an better solution (with only bash functionality, as opposed to external calls), see one of the other answers.
The following would do and does not require the system to have the rename program (although you would most often have this on a system):
for file in *.html; do
mv...
How to redirect output to a file and stdout
...he OP only wanted stdout, since he mentioned stdout in the subject of the post.
– Zoredache
Oct 1 '14 at 1:30
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Making the main scrollbar always visible
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For those (like me) who find styling html a bit hack-y, note that you can use the structural pseudo-selector :root instead of html. See: developer.mozilla.org/en-US/docs/Web/CSS/:root
– Rounin
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Sort NSArray of date strings or objects
...dited Apr 25 '13 at 7:17
Paras Joshi
19.8k1111 gold badges5353 silver badges6969 bronze badges
answered Oct 12 '10 at 9:25
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Detect when an HTML5 video finishes
...e in this case, the handler is being attached with addEventListener (and those early versions of IE are irrelevant to people dealing with HTML5 video), it was completely unnecessary and I have removed it.
– Mark Amery
Jul 15 '15 at 20:09
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Very large matrices using Python and NumPy
...re efficient data structures for sparse matrices (matrices with lots of zeros), like scipy.sparse.csc_matrix.
Modify your algorithm to work on submatrices. You can read from disk only the matrix blocks that are currently being used in computations. Algorithms designed to run on clusters usually wo...
MySQL “NOT IN” query
...ed Oct 5 '09 at 10:29
Julien LebosquainJulien Lebosquain
37.9k88 gold badges9797 silver badges108108 bronze badges
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How do I get PHP errors to display?
...wever, this doesn't make PHP to show parse errors - the only way to show those errors is to modify your php.ini with this line:
display_errors = on
(if you don't have access to php.ini, then putting this line in .htaccess might work too):
php_flag display_errors 1
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