将点替换为js对象键名称中的下划线

Question

我需要遍历js对象，并将所有点替换为该对象键中的下划线。
例如

{a.a:"test"}
to
{a_a:"test"}

这是我的代码。

Object.getOwnPropertyNames(match).forEach(function(val, idx, array) {
    if(val.indexOf(".") != -1){
       val.replace(/\./g,'_');
    }
});

谢谢，但是我的对象不是那么简单，就像这样

{
"a.a":{
   "nee.cc":"sdkfhkj"
},
"b.b": "anotherProp"
}

Answer 1

使用lodash ，这是一个函数，该函数将对象的每个键的下划线递归替换为下划线。

并添加了测试以验证结果。

 function replaceDotWithUnderscore(obj) { _.forOwn(obj, (value, key) => { // if key has a period, replace all occurences with an underscore if (_.includes(key, '.')) { const cleanKey = _.replace(key, /\\./g, '_'); obj[cleanKey] = value; delete obj[key]; } // continue recursively looping through if we have an object or array if (_.isObject(value)) { return replaceDotWithUnderscore(value); } }); return obj; } // -------------------------------------------------- // Run the function with a test to verify results // ------------------------------------------------- var input = { "aa": { "nee.cc": "sdkfhkj" }, "bb": "anotherProp" }; var result = replaceDotWithUnderscore(input); // run a quick test to make sure our result matches the expected results... var expectedResult = { "a_a": { "nee_cc": "sdkfhkj" }, "b_b": "anotherProp" }; console.log(result); console.assert(_.isEqual(result, expectedResult), 'result should match expected result.'); 

 <script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js"></script> 

Answer 2

使用Array.prototype.reduce()创建一个新对象，并使用不带regexp的简单字符串替换来替换道具名称中的点：

 function transformKeys(obj) { return Object.keys(obj).reduce(function(o, prop) { var value = obj[prop]; var newProp = prop.replace('.', '_'); o[newProp] = value; return o; }, {}); } var result = transformKeys({"aa":"test", "bb": "anotherProp"}); console.log(result); 

Answer 3

下面的这段代码可能有助于您解决问题。

Object.keys(yourObj).forEach(function(v){
    yourObj[v.replace(".", "_")] = yourObj[v];
    delete yourObj[v];
    console.log(yourObj);
});

Answer 4

您可以只使用键为“ _”而不是“”的属性填充新对象。 ：

var transformKeys = obj => {
  result = {};
  Object.keys(obj).forEach(x => {
    var y = x.replace(".", "_");
    result[y] = obj[x];
  });
  return result;
}
console.log(transformKeys({"a.a":"test", "b.b": "anotherProp"}));
// { a_a: 'test', b_b: 'anotherProp' }

Answer 5

使函数循环您的对象并检查是否有对象，然后重用函数。

var obj = {
"a.a":{
   "nee.cc":"sdkfhkj"
},
"b.b": "anotherProp"
};

d_u(obj); // change dot to underscore function

function d_u(obj){
    for(var i in obj) {
        if (typeof obj[i] == "object") d_u(obj[i]);            
            obj[i.replace(/\./g,'_')] = obj[i];            
            delete obj[i];  // delete old object [current]      
    }
}
console.log(obj);