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Tree data structure in C#
...eate a method with the signature of delegate ie for a tree of ints: void my_visitor_impl(int datum) - make it static if you need, instantiate a delgate: TreeVisitor<int> my_visitor = my_visitor_impl; and then invoke on the root node or NTree class if u make it static: NTree<int>.traverse...
Jackson and generic type reference
...nStaxMan
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Run a single migration file
... of the ruby file:
rails console
>> require "db/migrate/20090408054532_add_foos.rb"
>> AddFoos.up
Note: newer versions of rails may require AddFoos.new.up rather than AddFoos.up.
An alternative way (without IRB) which relies on the fact that require returns an array of class names:
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C++ equivalent of java's instanceof
...icCast performance(A->B) : 400262 us
DynamicCast performance(A->A) : 324942 us
Output (with compiler optimization):
InstanceOf performance(A->D) : 209501 us
InstanceOf performance(A->C) : 208727 us
InstanceOf performance(A->B) : 207815 us
InstanceOf performance(A->A) : 19795...
Reverse colormap in matplotlib
...ly reverse the color order of a given colormap in order to use it with plot_surface.
7 Answers
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How to compare times in Python?
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132
You can't compare a specific point in time (such as "right now") against an unfixed, recurring ...
rails i18n - translating text with links inside
...
en.yml
log_in_message_html: "This is a text, with a %{href} inside."
log_in_href: "link"
login.html.erb
<p> <%= t("log_in_message_html", href: link_to(t("log_in_href"), login_path)) %> </p>
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Flattening a shallow list in Python [duplicate]
...f memory.
– skeggse
Feb 27 '18 at 2:32
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How to do Base64 encoding in node.js?
...wered May 31 '11 at 2:46
onteria_onteria_
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What is “lifting” in Scala?
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Mario GalicMario Galic
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