为每个键添加前缀:

const obj = {foo: 'bar'}

const altObj = Object.fromEntries(
  Object.entries(obj).map(([key, value]) => 
    // Modify key here
    [`x-${key}`, value]
  )
)

// altObj = {'x-foo': 'bar'}

我会这样做:

function renameKeys(dict, keyMap) {
  return _.reduce(dict, function(newDict, val, oldKey) {
    var newKey = keyMap[oldKey] || oldKey
    newDict[newKey] = val 
    return newDict
  }, {})
}

您可以尝试lodash _mapkeys。

Var用户= { 名称:“安德鲁”, id: 25日 报道:假 }; Var重命名= _。mapKeys(用户，函数(值，键){ 返回键+ "_" + user.id; })； console.log(重命名); < script src = " https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.11/lodash.js " > < /脚本>

重命名键，但避免改变原始对象参数

oldJson=[{firstName:'s1',lastName:'v1'},
         {firstName:'s2',lastName:'v2'},
         {firstName:'s3',lastName:'v3'}]

newJson = oldJson.map(rec => {
  return {
    'Last Name': rec.lastName,
    'First Name': rec.firstName,  
     }
  })
output: [{Last Name:"v1",First Name:"s1"},
         {Last Name:"v2",First Name:"s2"},
         {Last Name:"v3",First Name:"s3"}]

最好有一个新的数组

还有一种最强大的REDUCE方法。

数据= {\ key1:“value1”，key2:“value2”，key3:“value3”}; 键文件夹= {\ key1:“firstkey”，key2:“secondkey”，key3:“thirdkey” mappedData = Object.keys . .还原((obj,k) =>对象。assign(obj， {\ [keyMap]]:数据[k]}，{\}; 控制台日志(mappedData); 第一个“value1”、“secondkey”、“value2”、“thirdkey”、“value3”……

我只想用ES6(ES2015)的方式!

我们需要跟上时代!

const old_obj = { k1: `111`, k2: `222`, k3: `333` }; console.log(`old_obj =\n`, old_obj); // {k1: "111", k2: "222", k3: "333"} /** * @author xgqfrms * @description ES6 ...spread & Destructuring Assignment */ const { k1: kA, k2: kB, k3: kC, } = {...old_obj} console.log(`kA = ${kA},`, `kB = ${kB},`, `kC = ${kC}\n`); // kA = 111, kB = 222, kC = 333 const new_obj = Object.assign( {}, { kA, kB, kC } ); console.log(`new_obj =\n`, new_obj); // {kA: "111", kB: "222", kC: "333"}