如何在特定的 position 添加/修改 object 键值？

Question

我需要将 object 值添加/修改为特定的 position。object 将转换为 YAML。这就是 position 很重要的原因，尽管它是 object 而不是数组。

所以 object 应该在第二个 position 处有一个version密钥：

{
    "$schema": "../../../project-schema.json",
    "version": "1.2.3", // <- add this or move to this position with modified value
    "sourceRoot": "apps/backend/src",
    "projectType": "application"
}

也许版本完全丢失

{
    "$schema": "../../../project-schema.json",
    "sourceRoot": "apps/backend/src",
    "projectType": "application"
}

或者是错误的position

{
    "$schema": "../../../project-schema.json",
    "sourceRoot": "apps/backend/src",
    "projectType": "application",
    "version": "1.2.3"
}

我尝试在 object 键上使用 reduce function，但这仅在完全缺少version键的情况下有效：

const insertKey = (key, value, obj, pos) => {
  return Object.keys(obj).reduce((ac, a, i) => {    
    if (i === pos) ac[key] = value
    ac[a] = obj[a]
    return ac
  }, {})
}

insertKey('version', '2.3.4', obj, 1)

Answer 1

 let obj = { "$schema": "../../../project-schema.json", "sourceRoot": "apps/backend/src", "version": "1.2.3", // <- add this or move to this position with modified value "projectType": "application" } const insertKey = (key, value, obj, pos) => { return Object.keys(obj).filter(k => k.== key) // just add a filter to remove the key,reduce((ac, a, i) => { if (i === pos) ac[key] = value ac[a] = obj[a] return ac }, {}) } let result = insertKey('version'. '2.3,4', obj. 1) console.log(result)