老师，useMousePosition可以运行但是会报一个warning:
项目地址/src/views/hooks/useMousePosition.ts
warning Missing return type on function, 请问下这边 type要怎么处理呢

// x: Ref<number> y: Ref<number>
// Ref<number> 要怎么处理呢
// 或是这个 function useMousePosition() {  
const useMousePosition = () => {
    const x = ref(0)
    const y = ref(0)
    const updateMouse = (e: MouseEvent) => {
        x.value = e.pageX
        y.value = e.pageY
    }
    onMounted(() => {
        document.addEventListener('click', updateMouse)
    })
    onUnmounted(() => {
        document.removeEventListener('click', updateMouse)
    })
    return {x , y}
}

export default useMousePosition

老师我前阵子项目忙，现在回来学习了，.eslintrc如下:
.eslintrc.js

module.exports = {
  root: true,
  env: {
    node: true
  },
  'extends': [
    'plugin:vue/vue3-essential',
    'eslint:recommended',
    '@vue/typescript/recommended'
  ],
  parserOptions: {
    ecmaVersion: 2020
  },
  rules: {
    'no-console': process.env.NODE_ENV === 'production' ? 'warn' : 'off',
    'no-debugger': process.env.NODE_ENV === 'production' ? 'warn' : 'off'
  },
  overrides: [
    {
      files: [
        '**/__tests__/*.{j,t}s?(x)',
        '**/tests/unit/**/*.spec.{j,t}s?(x)'
      ],
      env: {
        jest: true
      }
    }
  ]
}

不过项目里有用到Typescript，发现这样写就不会报错了，但不知道是和eslint哪边有关，用的@vue/cli 4.5.13

import {ref, onMounted, onUnmounted, Ref} from 'vue'

interface Position {
    x: Ref<number>
    y: Ref<number>
}
const useMousePosition = (): Position=> {
// ....
}