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Rails find_or_create_by more than one attribute?
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467
Multiple attributes can be connected with an and:
GroupMember.find_or_create_by_member_id_and...
express 4.0 , express-session with odd warning message
I am trying to work through setting up a nodejs app using express 4.x. After stumbling through the middleware-removal issues, I finally got it working.
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How can I get the intersection, union, and subset of arrays in Ruby?
... def |(other)
@set | other.set
end
end
x = MultiSet.new([1,1,2,2,3,4,5,6])
y = MultiSet.new([1,3,5,6])
p x - y # [2,2,4]
p x & y # [1,3,5,6]
p x | y # [1,2,3,4,5,6]
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Increment a database field by 1
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edited May 23 '17 at 12:34
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answered May 4 '10 at 4:41
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How to get a specific output iterating a hash in Ruby?
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answered Aug 4 '09 at 13:38
community wiki
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How to get the first column of a pandas DataFrame as a Series?
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143
>>> import pandas as pd
>>> df = pd.DataFrame({'x' : [1, 2, 3, 4], 'y' : [4, ...
Remove first 4 characters of a string with PHP
How can I remove the first 4 characters of a string using PHP?
7 Answers
7
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`levels
...tion, @Marek posted the following solution:
https://stackoverflow.com/a/10432263/636656
4 Answers
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Difference between Google APIs (x86 System Image) and Google APIs (ARM System Image) in Android 4.4.
...6 processor was doing to also emulate the ARM instruction set.
At Android 4.0.3 (API 15) Intel provided their own x86 based Android system image. This could then be used to create AVDs that did not need to do ARM translation. Combined with the Intel Hardware Accelerated Execution Manager (HAXM) the...
Targeting .NET Framework 4.5 via Visual Studio 2010
Today I installed the .NET Framework 4.5 on my machine expecting to be able to use it from Visual Studio 2010, since it's just a minor update that should't pose problems for Visual Studio 2010. Unfortunately I am not, even manually removing certain 4.0 and adding the corresponding 4.5 assemblies r...