kotlin-stdlib/kotlin/Comparable/compareTo

compareTo

abstract operator fun compareTo(other: T): Int(source)

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.

Since Kotlin

1.0
abstract operator fun compareTo(other: T): Int(source)

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.

Since Kotlin

1.3