contains

Checks if a value is contained within another object. Depending on the target object, the meaning of ‘contains’ will be different and the parameters expected will differ.

Parameters:

No.	Type	Comments
1	Object of type string, map< K, V >, list< T > or set< T >	Containing object
2	Value being checked for existence	Depends on the type of the 1st argument to contains

Returns: boolean - true if the value specified by the 2nd argument exists in the 1st. The existence of a key is checked for a map< K, V >.

Usages:

• contains( v:list<T>, value : T ) : boolean
• contains( v:set<T>, value : T ) : boolean
• contains( v:map<K, V>, key : K ) : boolean
• contains( v:string, entry:string ) : boolean