JS - Convert (replace) or Map - key to value from object

gistfile1.txt

function convertState(state) {
  const states = {
    'new-south-wales': 'NSW',
    'queensland': 'QLD',
    'south-australia': 'SA',
    'western-australia': 'WA',
    'northern-territory': 'NT',
    'victoria': 'VIC',
    'tasmania': 'TAS',
    'australian-capital-territory': 'ACT',
  };

  if (states.hasOwnProperty(state)) {
    return states[state];
  }

  return null;
}

// example: convertState('victoria')
// return 'VIC'