$count projection

Counts values in objects, arrays or strings that are addressed by path

Signature

path (String/Array) - Path to the property, that should be counted

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

TYPE SIGNATURES

String -> Object -> Number
(String, Object) -> Number
Array -> Object -> Number
(Array, Object) -> Number

EXAMPLE

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

$count('rooms.kitchen.refrigerator', myObject); // returns 3

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

Iterable.Indexed
Iterable.Keyed
Iterable.Set