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Scrolling down both parts of a split-window at the same time in Vim
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answered Jul 7 '09 at 14:37
Brian AgnewBrian Agnew
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Java: int array initializes with nonzero elements
...ed with a situation where it is not. Such a behavior occurs first in JDK 7u4 and also occurs in all later updates (I use 64-bit implementation). The following code throws exception:
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How to get last items of a list in Python?
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You can use negative integers with the slicing operator for that. Here's an example using the p...
What is the purpose of the -nodes argument in openssl?
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The option -nodes is not the English word "nodes", but rather is "no DES". When given as an arg...
How to configure PostgreSQL to accept all incoming connections
...this be configured in the pg_hba.conf file? I'm using postgreSQL version 8.4.
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Line continuation for list comprehensions or generator expressions in python
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[x
for
x
in
(1,2,3)
]
works fine, so you can pretty much do as you please. I'd personally...
HintPath vs ReferencePath in Visual Studio
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Set default syntax to different filetype in Sublime Text 2
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Plotting time in Python with Matplotlib
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4 Answers
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Rails where condition using NOT NIL
...h Rails 3:
Foo.includes(:bar).where("bars.id IS NOT NULL")
ActiveRecord 4.0 and above adds where.not so you can do this:
Foo.includes(:bar).where.not('bars.id' => nil)
Foo.includes(:bar).where.not(bars: { id: nil })
When working with scopes between tables, I prefer to leverage merge so that...