$contains projection

Checks if a structure contains an item at the position addressed by path

Signature

value (Any) - The value to search for

path (String/Array) - Path to the property to search in

subject (Object) - The object that contains the requested value

TYPE SIGNATURES

* -> String -> Object -> Boolean
(*, String) -> Object -> Boolean
(*, String, Object) -> Boolean
* -> Array -> Object -> Boolean
(*, Array) -> Object -> Boolean
(*, Array, Object) -> Boolean

EXAMPLE

const myObject = {
    rooms: {
        kitchen: {
            refrigerator: [
                'eggs',
                'beer',
                'milk'
            ]
        }
    }
};

$contains('beer', 'rooms.kitchen.refrigerator', myObject); // returns true
$contains('wine', 'rooms.kitchen.refrigerator', myObject); // returns false

IMMUTABLE JS SUPPORT the following types are supported for values targeted by path:

Iterable.Indexed
Iterable.Keyed