Currying: Difference between revisions
→{{header|Ruby}}: Added explanation about optional argument
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=={{header|Ruby}}==
The curry method was added in Ruby 1.9.1. It takes an optional arity argument, which determines the number of arguments to be passed to the proc. If that number is not reached, the curry method returns a new curried method for the rest of the arguments. (
<lang ruby>
b = proc {|x, y, z| (x||0) + (y||0) + (z||0) }
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p b.curry(5)[1, 2][3, 4][5] #=> 15
p b.curry(1)[1] #=> 1
</lang>
=={{header|Scheme}}==
This is a simple general currying function written in [[Scheme]]:
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