如何在Typescript中定义键-回调对的类型

type CallbackMap = {
  [key: string]: (arg: any) => void;
};

// 使用CallbackMap类型定义一个对象
const callbacks: CallbackMap = {
  onClick: (event) => {
    console.log('Button clicked!', event);
  },
  onHover: (event) => {
    console.log('Mouse hovered!', event);
  },
};

// 添加新的键-回调对
callbacks.onResize = (size) => {
  console.log('Window resized!', size);
};

// 调用回调函数
callbacks.onClick('Button event');
callbacks.onHover('Mouse event');
callbacks.onResize('Window size');