# hidden ```js // usage chance.cc_types() chance.mersenne_twister() chance.mersenne_twister(12345) chance.months() chance.name_prefixes() chance.provinces() chance.states() chance.street_suffix() chance.street_suffixes() ``` These aren't really hidden per se, but just utility methods intended to be used internally but exposed externally in case they're useful to anyone. ```js // Return the list of cc types chance.cc_types() => [{name: "American Express", short_name: 'amex', prefix: '34', length: 15}, ...] // Return a new Mersenne Twister chance.mersenne_twister() => [object Object] // An instance of a Mersenne Twister // Optionally provide a seed for that twister chance.mersenne_twister(12345) => [object Object] // An instance of a twister with seed 12345 // Return our list of name prefixes chance.months(); => [{name: 'January', short_name 'Jan', numeric: '01'}, ...] // Return our list of name prefixes chance.name_prefixes(); => [{name: 'Doctor', abbreviation: 'Dr.'}, {name: 'Miss', abbreviation: 'Miss'}, ...] // Return the list of provinces chance.provinces(); => [{name: 'Alberta', abbreviation: 'AB'}, {name: 'British Columbia', abbreviation: 'BC'}, ...] // Return the list of states chance.states(); => [{name: 'Alabama', abbreviation: 'AL'}, {name: 'Alaska', abbreviation: 'AK'}, ...] // Return a random street suffix chance.street_suffix(); => {name: 'Street', abbreviation: 'St'} // Return the list of street suffixes chance.street_suffixes(); => [{name: 'Avenue', abbreviation: 'Ave'}, {name: 'Boulevard', abbreviation: 'Blvd'}, ...] ```