How to write functions in Leo?

How to write functions in Leo?

2 years ago
Anonymous $R5WK5a8uaN
Last Seen
38 minutes ago
Reputation
0
Spam
0.000
Last Seen
3 hours ago
Reputation
0
Spam
0.000
Last Seen
10 minutes ago
Reputation
0
Spam
0.000
Last Seen
2 hours ago
Reputation
0
Spam
0.000