gistfile1.txt

<script>
  var x = 1
  var message = 'hi?'
  var good = true

  var passcodes = {
    'back-Door': 3050,
    '1wineCellar': 1234,
    "2wineCellar": 5678,
    nuclearLaunch: 1111,
    kitchen: 'open sesame',
    safes: {
      jewels: 123,
      passport: 456,
      secretIdentity: 789
    }
  }
  console.log('passcodes', passcodes)
  console.log('passcodes.kitchen before', passcodes.kitchen)
  // delete passcodes.kitchen
  passcodes.kitchen = undefined
  console.log('passcodes.kitchen after', passcodes.kitchen)
  for (var key in passcodes) {
    console.log('key', key)
  }
  console.log('back door', passcodes['back-Door'])
  console.log('wine cellar 1', passcodes['1wineCellar'])
  console.log('wine cellar 2', passcodes['2wineCellar'])
  console.log('jewel safe', passcodes.safes.jewels)
  var codeINeed = 'nuclearLaunch'
  console.log('nuclear launch', passcodes[codeINeed]) // passcodes.nuclearLaunch
  passcodes.saferoom = 4321
  var newCode = 'frontDoor'
  passcodes[newCode] = 9876

  delete passcodes.nuclearLaunch
  delete passcodes['kitchen']

  console.log('passcodes.safes.passport', passcodes.safes.passport)
  passcodes['safes']['passport'] = 111

  console.log('passcodes after', passcodes)

  console.log('passcodes.doesNotExist', passcodes.doesNotExist)
</script>