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bsideup/GroovyPatternMatchingA.groovy Secret

Last active August 29, 2015 14:14
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GroovyPatternMatchingA.groovy
def fact(num) {
return match(num) {
String >> fact(num.toInteger())
(0 | 1) >> 1
2 >> 2
_ >> _ * fact(_ - 1)
}
}
assert fact("5") == 120
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