null-type.md

Null Type

Validates whether the type of an input is null.

Valid values:

validator.nullType().validate(null);

Invalid values:

validator.nullType().validate(undefined);
validator.nullType().validate(true);
validator.nullType().validate(false);
validator.nullType().validate('foo');
validator.nullType().validate(0);
validator.nullType().validate(1);
validator.nullType().validate([]);
validator.nullType().validate({});
validator.nullType().validate(new Array());
validator.nullType().validate(new Object());
validator.nullType().validate(Object.create(null));