is_in_list¶
Syntax¶
Parameters¶
list-expression- The list being checked.
expression- The value to search the list for.
Returns¶
Predicate that checks if an item is in a list.
1 (true) if the value of the list-expression has an item whose value is expression. 0 (false) otherwise.
Description¶
This expression evaluates to true if the value of the list expression parameter contains an item with a value matching the second argument.
Examples¶
If there is a list of agents, Agent_List, then the following conditional
applies only to agents whose ID is in the list: