为什么通过重命名对象的键会失去价值？

Question

通过重命名对象的键，我丢失了值。如何确保只有键被更改而值保持不变？

这是我的对象

const items = {
  "brand": "losee",
  "target": "brand",
  "item": {
    "name": null,
    "fabric": null,
    "country": "CH",
    "fit": "regular"
  }
}

// for renaming the key I use this method

delete Object.assign(items, { prototype: items.item.fit }).fit;

console.log(items)

在这个方法之后我的对象看起来像这样

{
  "brand": "losee",
  "target": "brand",
  "item": {
    "name": null,
    "fabric": null,
    "country": "CH",
    "prototype": null
  }
}

我做错了什么？谢谢大家

Answer 1

尝试分配给 items.item

const items = {
  "brand": "losee",
  "target": "brand",
  "item": {
    "name": null,
    "fabric": null,
    "country": "CH",
    "fit": "regular"
  }
}

delete Object.assign(items.item, { prototype: items.item.fit }).fit

console.log(items)

为什么通过重命名对象的键会失去价值？

Why do I lose value by renaming the key of an object?

javascript

key

object

key-value