Ruby Documentation - Comparable

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Comparable

Comparable is the Mix-in for comparable classes. The including class must provide the basic comparison operator `<=>'. The other comparing operators are defined in this module using operator `<=>'.

Methods:

self == other: Returns true if self and the other have same values.
self > other: Returns true if self is greater than the other.
self >= other: Returns true if self is greater than or equals to the other.
self < other: Returns true if self is less than the other.
self <= other: Returns true if self is less than or equals to the other.
between?(min, max): Returns true if self is in between min and max.

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