Anonymous user
Talk:Partial function application: Difference between revisions
→Proposal for new task description: ruby 1.9
m (→Proposal for new task description: sign) |
(→Proposal for new task description: ruby 1.9) |
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Line 232:
w = g(7)(9) # non-idiomatic
print [map(u(7)(9), [1,2,3,4,5]), map(v, [1,2,3,4,5]), map(w, [1,2,3,4,5])]
</lang>
Not entirely-correct Ruby 1.9 implementation:
<lang ruby>
def f(a, b, x)
a * x + b
end
def f2
lambda {|a, b, x| a * x + b}
end
def g
proc { |a| proc { |b| proc { |x| a * x + b } } }
end
u = f2.curry[7][9]
w = g.call(7).call(9)
puts [ [1,2,3,4,5].map {|x| u[x]} \
, [1,2,3,4,5].map {|x| w.call x} ]
</lang>
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