ALERT - List is not available in Name - AppleScript

[BEGINNER_X]

Hi All,

Request:
I need to alert or stop the tool execution, if any one of my list of langauge code that should not match with the selected folder name.  

i.e., 

set myList to {"eng", "fren", "arab", "chin"}

set theFolderName to "abcdef"

Here the condition is false. So I want to stop the tool execution.

Please help on this.

Thanks

SS

[Loic.Aigon]

Can you provide more details ?

[rob day · Accepted solution]

Check if the name is not in the list followed by return, which will stop the script:

set myList to {"eng", "fren", "arab", "chin"}

set theFolderName to "abcdef"

if theFolderName is not in myList then
	display dialog theFolderName & " is not in myList"
	return
end if

display dialog theFolderName & " is in myList"