javascript - 在嵌套对象上加入 (';' )

Question

我正在尝试将对象中的所有值连接到分号分隔，如果对象只是一个级别，它工作正常:

obj = { 
    name: "one"
    additionalInfo: "hello"
    ...
};

Object.values(obj).join(';')

结果:一个；你好

但是如果对象是嵌套的:

obj = { 
    name: "one"
    additionalInfo: {
         description: "hello",
         ...
    }
};

Object.values(obj).join(';')

结果:一个；[对象对象]

除了name之外的其余值当然是[object Object]。我如何也加入 2 级值？

我想要的结果是:

one;hello

Answer 1

您可以采取递归方法，确保在连接对象的整个级别的值之前转换任何嵌套对象:

function joinObjectValues(obj, delimiter = ";") {
  return Object.values(obj)
    .map(val => {
      //convert any objects recursively
      if (typeof val === "object") {
        return joinObjectValues(val, delimiter);
      }

      return val;
    })
    .join(delimiter)
}

let objOneLevel = {
  name: "one"
};

let objTwoLevels = {
  name: "one",
  additionalInfo: {
    description: "hello",
  }
};

let objThreeLevels = {
  name: "one",
  additionalInfo: {
    description: "hello",
    other: {
      customField: "world"
    }
  }
};


console.log(joinObjectValues(objOneLevel))
console.log(joinObjectValues(objTwoLevels))
console.log(joinObjectValues(objThreeLevels))