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Android: How to enable/disable option menu item on button click?
...l there.
– AgentKnopf
Jan 16 '13 at 20:43
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How does one reorder columns in a data frame?
...50)].
– dalloliogm
Feb 25 '14 at 12:20
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to put the columns in idcols at the start: idcols <- ...
undefined method `source_index' for Gem:Module (NoMethodError)
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edited Apr 4 '13 at 20:53
Brad Werth
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answe...
When do we need curly braces around shell variables?
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@karatedog ${1:-20} is a form of parameter expansion. Here it is not obvious because it mainly uses digits and arithmetic operators which trick us in thinking there is arithmetic involved, but it actually refers to the positional parameter $...
Run Java Code Online [closed]
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edited Jan 20 '17 at 13:04
answered Oct 21 '11 at 22:09
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What exactly is Python's file.flush() doing?
... is a good thing, you should make both calls as instructed.
Addendum in 2018.
Note that disks with cache mechanisms is now much more common than back in 2013, so now there are even more levels of caching and buffers involved. I assume these buffers will be handled by the sync/flush calls as well...
Throwing the fattest people off of an overloaded airplane.
...se something quite like this for a recommendation engine (I select the top 200 items from a list of several million). I typically end up with only 50,000 or 70,000 items actually added to the heap.
I suspect that you'll see something quite similar: the majority of your candidates will be rejected b...
Why can't variables be declared in a switch statement?
...les.
– Chris Jefferson
Feb 7 '09 at 20:11
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@workmad3 by entering a new curly braces block doesn...
Yank entire file
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I use the following instruction: :%y+
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Static files in Flask - robot.txt, sitemap.xml (mod_wsgi)
...Philip Southam
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