kotlin-stdlib/kotlin/compareTo

compareTo

infix inline fun <T> Comparable<T>.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.

This function delegates to Comparable.compareTo and allows to call it in infix form.

Since Kotlin

1.6