text: var memberArray = ['ejoing', 'graphittie', 'leezhce'];
  console.log("memberArray[2]", memberArray[2]);
  
  var memberObject = {
    manager: 'egoing',
    developer: 'graphittie',
    designer: 'leezhce'
  }
  
  memberObject.designer = 'leezche';
  console.log("memberObject.designer", memberObject.designer);
  console.log("memberObject['designer']", memberObject['designer']);
  delete memberObject.manager
  console.log("after delete memberObject.manager", memberObject.manager);