what is this operator called and what is it used for <=>

Question

I recently came across this magical operator when digging into Groovy: <=>

Groovy has really made me happy with elvis operators ?. and ?: which I use constantly

Answer 1

Name : Spaceship operator

Method that it uses : a.compareTo(b) //where a and b are the variables that has been used

Class : java.lang.Comparable

And this link explains about that operator in a bit more . Click Here