如何在Typescript中创建将数组转换为类型化对象的函数

function arrayToObject<T>(arr: T[]): { [key: string]: T } {
  // 实现代码
}

function arrayToObject<T>(arr: T[]): Record<string, T> {
  // 实现代码
}

function arrayToObject<T>(arr: T[]): Record<string, T> {
  return arr.reduce((obj, item, index) => {
    obj[index.toString()] = item;
    return obj;
  }, {} as Record<string, T>);
}

function arrayToObject<T>(arr: T[]): Record<string, T> {
  return arr.reduce((obj, item, index) => {
    obj[index.toString()] = item;
    return obj;
  }, {} as Record<string, T>);
}

// 示例用法
const arr = [1, 2, 3, 4, 5];
const obj = arrayToObject(arr);
console.log(obj); // { '0': 1, '1': 2, '2': 3, '3': 4, '4': 5 }