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Programmatically creating Markdown tables in R with KnitR
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When to use PNG or JPG in iPhone development?
...to display. However, large PNGs may take longer to read from storage than more compressed image formats, and thus be slower to display.
JPG's are smaller to store, but lossy (amount depends on compression level), and to display them requires a much more complicated decoding algorithm. But the typ...
Python Request Post with param data
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Proper way to catch exception from JSON.parse
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If the try block contains more statements, you can identify the exception by e.name == "SyntaxError", provided you don't have an eval.
– user1158559
Dec 20 '15 at 20:54
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What's the u prefix in a Python string?
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Combining unicode + raw (regex) strings (e.g. ur"string") is valid in Python 2, but it is unfortunately invalid syntax in Python 3.
– cowlinator
Feb 18 at 9:07
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C# generic “where constraint” with “any generic type” definition?
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Tracing XML request/responses with JAX-WS
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Many-to-many relationship with the same model in rails?
... information.
TL;DR
# user.rb
has_many :friendships, :foreign_key => "user_id", :dependent => :destroy
has_many :occurances_as_friend, :class_name => "Friendship", :foreign_key => "friend_id", :dependent => :destroy
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# friendship.rb
belongs_to :user
belongs_to :friend, :class_n...
What is the official “preferred” way to install pip and virtualenv systemwide?
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How would you compare jQuery objects?
...d on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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