arrayElementExists
Description
Returns "true" if the element exists in the array and "false" otherwise.
Parameters
Return Type
Boolean
Example
if( elementExists(watchers, currentUser()) ){
print("You are watching this issue.");
}
The function returns "true" if currentUser is in the watchers array and if the result is "true" a message is printed.
If elem is not the same type as declared in the array definition, the function returns "error".