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Error: Could not find or load main class [duplicate]
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Sae1962
1,0201212 silver badges2727 bronze badges
answered Sep 20 '11 at 13:16
SaketSaket
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Rails: select unique values from a column
...rails 5+
Model.distinct.pluck(:rating)
Update
Apparently, as of rails 5.0.0.1, it works only on "top level" queries, like above. Doesn't work on collection proxies ("has_many" relations, for example).
Address.distinct.pluck(:city) # => ['Moscow']
user.addresses.distinct.pluck(:city) # => [...
How to sort a list of strings?
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skolima
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answered Aug 30 '08 at 17:10
Eli CourtwrightEli Courtwright
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removeEventListener on anonymous functions in JavaScript
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Adam HeathAdam Heath
4,20111 gold badge3232 silver badges4949 bronze badges
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Changing every value in a hash in Ruby
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180
If you want the actual strings themselves to mutate in place (possibly and desirably affecting o...
JavaFX and OpenJDK
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101
JavaFX is part of OpenJDK
The JavaFX project itself is open source and is part of the OpenJDK ...
Gson: How to exclude specific fields from Serialization without annotations
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dimo414
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answered May 4 '11 at 20:40
Chris Seline...
How to detect input type=file “change” for the same file?
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answered Nov 7 '10 at 15:14
BrunoLMBrunoLM
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How to fix “containing working copy admin area is missing” in SVN?
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According to this: http://www.devcha.com/2008/03/svn-directory-svn-containing-working.html
Check-out the folder "blabla" to a different location and then copy its .svn folder back into the original "blabla".
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make: Nothing to be done for `all'
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edited Jan 14 '19 at 7:40
answered May 25 '13 at 13:07
Vi...