javascript - 未捕获类型错误 : Cannot set property '0' of undefined error

Question

我正在尝试在 JavaScript 中创建字数统计算法，我正在创建一个 for-in 循环来从数组中获取每个单词，然后将它们推送到对象，但在为每个数组设置每个对象键时出现错误值(value)。

const wordCount = input => {
  let newArr = input.split(" ");
  let obj = {};
  for (let i in newArr) {
    console.log(newArr[i]); // This returns value
    obj.newArr[i] = 1;  // This gives error:- Uncaught TypeError: Cannot set property '0' of undefined
  }
  console.log(obj);
};
wordCount("heyy how you doin heyy");

Answer 1

const wordCount = input => {
  let newArr = input.split(" ");
  let obj = {};
  for (let i in newArr) {
   // console.log(newArr[i]); // This returns value
    obj[newArr[i]] = 1;  // This gives error:- Uncaught TypeError: Cannot set property '0' of undefined
   
  }
  console.log(obj);
};
wordCount("heyy how you doin heyy");