Jackson Tian

Callback 作为一类特殊的 function，主要用于解决回调函数，事件等。

- [ ] 变量名只能小写字母开头 - [ ] model 字段名只能小写字母开头 - [ ] model 名只能大写字母开头

module: fix error message for not found

5

When I written module path with a typo: ```js import {readdir} from 'fs/promisesxxx'; ``` The error message tell me cannot find package 'fs'. ```sh $ node test.js node:internal/modules/esm/resolve:853 throw new...