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How do I know that the UICollectionView has been loaded completely?
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answered Oct 24 '14 at 2:02
Cullen SUNCullen SUN
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Xcode 4 hangs at “Attaching to (app name)”
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Fixed it!! Hopefully this helps some people avoid a very frustrating couple hours. I solved thi...
What is the best way to implement nested dictionaries?
...ow:
>>> import pprint
>>> pprint.pprint(vividict, width=40)
{'new jersey': {'mercer county': {'plumbers': 3,
'programmers': 81},
'middlesex county': {'programmers': 81,
'salesmen': 62}},
'new yo...
How do I convert a IPython Notebook into a Python file via commandline?
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NPM modules won't install globally without sudo
I have just reinstalled Ubuntu 12.04 LTS, and before anything else i did these steps :
14 Answers
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Remote debugging Tomcat with Eclipse
...eck if this works?
JPDA_OPTS="-agentlib:jdwp=transport=dt_socket,address=8000,server=y,suspend=n"
catalina.sh jpda start
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How to update a menu item shown in the ActionBar?
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edited Nov 2 '11 at 18:03
Nightfirecat
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How do I link to part of a page? (hash?)
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answered May 14 '10 at 15:01
Daniel DiPaoloDaniel DiPaolo
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How can I “pretty print” a Duration in Java?
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answered Aug 12 '10 at 19:44
Rob HruskaRob Hruska
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How can I select rows with most recent timestamp for each key value?
...i.e. latest timestamp) for each unique sensor ID.
In my use case I have ~10M readings from ~1K sensors, so trying to join the table with itself on a timestamp-based filter is very resource-intensive; the above takes a couple of seconds.
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