> For the complete documentation index, see [llms.txt](https://coffe1891.gitbook.io/frontend-hard-mode-interview/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://coffe1891.gitbook.io/frontend-hard-mode-interview/id-1/1.-ni-xu-yao-zhi-dao-de-xin-dong-xi.md).

# 1.你需要知道的新东西

- [壹.1.1 新版 ECMAScript 特性分析](https://coffe1891.gitbook.io/frontend-hard-mode-interview/id-1/1.-ni-xu-yao-zhi-dao-de-xin-dong-xi/1.1.1.md)
- [壹.1.2 JavaScript未来的方向](https://coffe1891.gitbook.io/frontend-hard-mode-interview/id-1/1.-ni-xu-yao-zhi-dao-de-xin-dong-xi/1.1.2.md)