循环通过 object 并将值添加到 Javascript object 以增量计数作为键

Question

例子：

{
 Do you have a monthly student payment?: 133, 
 Do you have a monthly car loan payment?: 150,
 Do you have a monthly car insurance payment?: 120,
 How much do you estimate you spend on gas for your car monthly?: 150
}

Output： {120: 1, 133: 1, 150: 1}

预期 output：

{1: 133, 2: 150, 3: 120 , 4: 150}

我的 function：

  getClicked() {
    this.newObj = {};
    this.mortgageRateFound = [];
    for (let key in this.numbersInForm) {
      console.log(this.numbersInForm)
      if (! this.newObj[this.numbersInForm]) {
        this.newObj[this.numbersInForm[key]] = (this.newObj[key]+1) || 1
      }
    }
    console.log(this.newObj);
  }

Answer 1

您可以使用Object.values来获取 object 中每个键的值，然后Array.map使用数组索引 (+1) 作为对象数组然后，您可以使用Object.assign将该对象数组展平为单个 object：

 const obj = { "Do you have a monthly student payment?": 133, "Do you have a monthly car loan payment?": 150, "Do you have a monthly car insurance payment?": 120, "How much do you estimate you spend on gas for your car monthly?": 150 }; const out = Object.assign({}, ...Object.values(obj).map((v, i) => ({ [i+1]: v }))); console.log(out);

Answer 2

ES5

 const obj = { "Do you have a monthly student payment?": 133, "Do you have a monthly car loan payment?": 150, "Do you have a monthly car insurance payment?": 120, "How much do you estimate you spend on gas for your car monthly?": 150 }; var output = Object.keys(obj).reduce(function(acc, curr, index) { acc[index] = obj[curr] return acc; }, {}) console.log(output)