逆对象扁平

[Sunny-117]

No description provided.

[kangkang123269]

简单实现

function unflattenObject(data) {
  let result = {};

  for (let key in data) {
    let keys = key.split('.');
    keys.reduce((r, k, i, a) => {
      return r[k] || (r[k] = isNaN(a[i + 1]) ? (a.length - 1 === i ? data[key] : {}) : []);
    }, result);
  }

  return result;
}

let testObj = { 
 'a.b.c': 1,
 'd.e': [2,3],
};

console.log(unflattenObject(testObj)); // 输出：{ a: { b: { c: 1 } }, d: { e: [2,3] } }

[Liu6625]

function unflattenObject(data) {
  let obj = {}
  for (const key in data) {
    let keys = key.split('.');
    let tmp = obj;
    for (let i = 0; i < keys.length; i++) {
      if (i === keys.length - 1){
        tmp[keys[i]] = data[key];
        break;
      }
      if (!Object.hasOwnProperty.call(tmp, keys[i])) {
        tmp[keys[i]] = {};
      }
      tmp = tmp[keys[i]];
    }
  }

  return obj
}

let testObj = { 
  'a.b.c': 1,
  'd.e': [2,3],
 };
 
 console.log(unflattenObject(testObj)); // 输出：{ a: { b: { c: 1 } }, d: { e: [2,3] } }