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How to elegantly rename all keys in a hash in Ruby? [duplicate]
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11 Answers
11
Active
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class
...
def process obj
process_hook obj
end
private
def process_state_1 obj
# ...
class << self
alias process_hook process_state_2
end
end
def process_state_2 obj
# ...
class << self
alias process_hook process_state_1
end
end
# Set up in...
Why are C# interface methods not declared abstract or virtual?
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147
For the interface, the addition of the abstract, or even the public keywords would be redundan...
Strip spaces/tabs/newlines - python
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125
Use str.split([sep[, maxsplit]]) with no sep or sep=None:
From docs:
If sep is not specif...
Simple conversion between java.util.Date and XMLGregorianCalendar
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edited Jul 16 '18 at 6:33
Piro says Reinstate Monica
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Difference between Fact table and Dimension table?
...StoreSales) and a one or more dimension tables. Each Dimension entry has 0,1 or more fact tables associated with it (Example of dimension tables: Geography, Item, Supplier, Customer, Time, etc.). It would be valid also for the dimension to have a parent, in which case the model is of type "Snow Flak...
Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala
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261
reduce vs foldLeft
A big big difference, not mentioned in any other stackoverflow answer relati...
What is a Manifest in Scala and when do you need it?
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198
The compiler knows more information about types than the JVM runtime can easily represent. A ...
Why does integer overflow on x86 with GCC cause an infinite loop?
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179
When the standard says it's undefined behavior, it means it. Anything can happen. "Anything" i...
How to properly import a selfsigned certificate into Java keystore that is available to all Java app
...s to use the program portecle.
Download and install portecle.
First make 100% sure you know which JRE or JDK is being used to run your program. On a 64 bit Windows 7 there could be quite a few JREs. Process Explorer can help you with this or you can use: System.out.println(System.getProperty("java...