Is not among

The is not among operator is the logical inverse of the is among operator. When one is true, the other is false.

See is among for further informations.

Examples:

"Hello" is not among the words of "Hello World" -- evaluates to false

if "Hell" is not among the words of "Hello World" then  -- evaluates to true
 answer "there is Hell" 
end if 

if "name" is not among the keys of Contacts #because contacts is an array
 answer "name not found"
end if