let obj = { name: 'obj' }
let arr = [1, 2, 3, 4]
let obj1 = {
  a: obj,
  b: arr,
  c: 3
}
let newObj1 = Object.create(obj1)

console.log(newObj1.a)
console.log(newObj1.a === obj)
console.log(newObj1.a, obj)

console.log(newObj1 === obj1)

console 命令行工具 X clear

console