Sha256: fa72923ef349bea9a7bc1dc2c72ce0e8da5c2033e330ceef45a3dea7daddbe40
Contents?: true
Size: 749 Bytes
Versions: 4
Compression:
Stored size: 749 Bytes
Contents
module Numbers
private
def sum
monoid(->(a, b) { a + b }, 0)
end
def add
sum
end
def even
remainder_is(2, 0)
end
def odd
remainder_is(2, 1)
end
def divide(divisor)
->(dividend) { dividend / divisor }
end
def remainder_is(divisor, remainder)
->(dividend) { remainder(dividend, divisor) == remainder }
end
def remainder(dividend, divisor)
dividend % divisor
end
def range_from(start)
Sequence.new(enumerator_of(increment, start))
end
def range(from, to)
Sequence.new((from..to).lazy)
end
def increment
->(number) { number + 1 }
end
def mod(divisor)
->(number) { number % divisor }
end
def greater_than(right)
->(left) { left > right }
end
end
Version data entries
4 entries across 4 versions & 1 rubygems