Code example for causing an undefined property access error

DarthVaderUncaughtTypeError.js

const DarthVader = {
  name : 'Anakin',
  mother : {
    name : 'Shmi'
  }
}

function getFatherName(person) {
  return person.father.name
}

// Throws the error: Uncaught TypeError: Cannot read property ‘name’ of undefined
let darthVadersFather = getFatherName(DarthVader)