kotlin.Comparable.compareTo
compareTo
abstract operator fun compareTo(other: T): Int
Compares this object with the specified object for order. Returns zero if this object is equal to the specified other object, a negative number if it's less than other, or a positive number if it's greater than other.
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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-comparable/compare-to.html
