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Test whether a list contains a specific value in Clojure
...ex 0!).
To add to the confusion, in cases where it doesn't make sense to call contains?, it simply return false; this is what happens in (contains? :foo 1) and also (contains? '(100 101 102) 101). Update: In Clojure ≥ 1.5 contains? throws when handed an object of a type that doesn't support the i...
Difference between Eclipse Europa, Helios, Galileo
...ects
Europa 29 June 2007 3.3 Europa projects
Callisto 30 June 2006 3.2 Callisto projects
Eclipse 3.1 28 June 2005 3.1
Eclipse 3.0 28 June 2004 3.0
To summarize, Helios, Galileo, Ganymede, etc are just code names for versi...
Deleting DataFrame row in Pandas based on column value
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Good update for query. It allows for more rich selection criteria (eg. set-like operations like df.query('variable in var_list') where 'var_list' is a list of desired values)
– philE
Sep 30 '14 at 20:32
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Using vagrant to run virtual machines with desktop environment
...ld solve us the problem that everyone have different software versions installed in the VM.
11 Answers
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How to avoid passing parameters everywhere in play2?
In play1, I usually get all data in actions, use them directly in views. Since we don't need to explicitly declare parameters in view, this is very easy.
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Extract a dplyr tbl column as a vector
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This seems the most versatile method as it works identically with vectors and data.frames, i.e. it enables functions to be more agnostic.
– geotheory
Mar 14 '17 at 10:03
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Differences between detach(), hide() and remove() - jQuery
... @comecme: If you have bound an event like a click handler to the span, call remove(), and attach it again, the binding will be gone and clicking the span will do nothing. If you call detach() and reattach, the binding stays and the click handler keeps working.
– lambshaanxy...
Android SDK on a 64-bit linux machine
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Yes, it is. You need to install the ia32 libraries. Check out the Ubuntu Linux troubleshooting section.
apt-get install ia32-libs
apt-get install sun-java6-jdk
share
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Ruby - test for array
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Type checking is for Java. Go ahead and just call count on the variable. Write unit tests to make sure the method works as expected.
– user132447
Mar 21 '12 at 14:55
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UINavigationController without navigation bar?
...Hidden box instead of using code. I've recently been on a kick of creating all my interfaces entirely programmatically without .xib files, so went straight to that for my answer.
– Ashwin
Apr 24 '11 at 3:45
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