Groovy: SpaceShip Operator - CompareTo - Comparable (<=>)
class Person implements Comparable {
String username
String email
int compareTo(other) {
this.username <=> other.username
}
}
assert -1 == ('a' <=> 'b')
assert 0 == (42 <=> 42)
assert -1 == (new Person([username:'mrhaki', email: 'test@email.com']) <=> new Person([username:'zavaria', email:'tester@email.com']))
assert [1, 2, 3, 4] == [4, 2, 1, 3].sort{ a, b -> a <=> b }
String username
String email
int compareTo(other) {
this.username <=> other.username
}
}
assert -1 == ('a' <=> 'b')
assert 0 == (42 <=> 42)
assert -1 == (new Person([username:'mrhaki', email: 'test@email.com']) <=> new Person([username:'zavaria', email:'tester@email.com']))
assert [1, 2, 3, 4] == [4, 2, 1, 3].sort{ a, b -> a <=> b }
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