What is the use of <=> operator in ruby?

Question

ruby operator <=> use!!!

Answer 1

a <=> b :=
if a < b then return -1
if a = b then return 0
if a > b then return 1
if a and b are not comparable then return nil

https://stackoverflow.com/questions/827649/what-is-the-ruby-spaceship-operator

Answer 2

thank you
😊😊