Why "unless" expression was created in ruby?

Question

Reason behind creating this unless statement? Any practical example will help. Thank you.
Till now loving Ruby language :D

Answer 1

Nikhil, aloha!
Ruby has a variety of ways to control execution. All the expressions described here return a value. ... The unless expression is the opposite of the if expression. If the value is false the “then” expression is executed
read more here: bit.ly/2hDt6TV

#ruby #expressions #unless #webdeveloper #osarts

Answer 2

reads better than if !

Answer 3

I don't like it. It's not easy to understand the logic.