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fumokmm/g100ponNo68.groovy

Created October 10, 2010 14:38
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g100ponNo68.groovy
// #g100pon No.68 curry/rcurry/ncurry
def func = { a, b, c, d -> (a + b) / (c - d) }
assert func(10, 20, 50, 35) == 2 // => (10 + 20) / (50 - 35)
// curry
def curriedFunc = func.curry(10)
assert curriedFunc(20, 50, 35) == 2 // => apply to b, c, and d.
// rcurry
def rightCurriedFunc = func.rcurry(50, 35)
assert rightCurriedFunc(10, 20) == 2 // => apply to a and b.
// ncurry
def indexCurriedFunc = func.ncurry(1, 20, 50)
assert indexCurriedFunc(10, 35) == 2 // => apply to a and d.
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