【202309】淘天电话一面（透心凉） · 大厂前端面试真题

[1、大量svg拖拽渲染速度为什么慢？说一下怎么减少回流？](1%E3%80%81%E5%A4%A7%E9%87%8Fsvg%E6%8B%96%E6%8B%BD%E6%B8%B2%E6%9F%93%E9%80%9F%E5%BA%A6%E4%B8%BA%E4%BB%80%E4%B9%88%E6%85%A2%EF%BC%9F%E8%AF%B4%E4%B8%80%E4%B8%8B%E6%80%8E%E4%B9%88%E5%87%8F%E5%B0%91%E5%9B%9E%E6%B5%81%EF%BC%9F.md) [2、了解WebGL吗？](2%E3%80%81%E4%BA%86%E8%A7%A3WebGL%E5%90%97%EF%BC%9F.md) [3、koa和express的差别](3%E3%80%81koa%E5%92%8Cexpress%E7%9A%84%E5%B7%AE%E5%88%AB.md) [4、koa中用到了哪些中间件？](4%E3%80%81koa%E4%B8%AD%E7%94%A8%E5%88%B0%E4%BA%86%E5%93%AA%E4%BA%9B%E4%B8%AD%E9%97%B4%E4%BB%B6%EF%BC%9F.md) [5、聊一下设计模式，在开发中的应用？](5%E3%80%81%E8%81%8A%E4%B8%80%E4%B8%8B%E8%AE%BE%E8%AE%A1%E6%A8%A1%E5%BC%8F%EF%BC%8C%E5%9C%A8%E5%BC%80%E5%8F%91%E4%B8%AD%E7%9A%84%E5%BA%94%E7%94%A8%EF%BC%9F.md) [6、说一下Vue的核心原理](6%E3%80%81%E8%AF%B4%E4%B8%80%E4%B8%8BVue%E7%9A%84%E6%A0%B8%E5%BF%83%E5%8E%9F%E7%90%86.md) [7、Vue2和Vue3的区别](7%E3%80%81Vue2%E5%92%8CVue3%E7%9A%84%E5%8C%BA%E5%88%AB.md) [8、session和cookie的区别](8%E3%80%81session%E5%92%8Ccookie%E7%9A%84%E5%8C%BA%E5%88%AB.md) [9、如果部署了两台云服务器，登录功能需要服务端保存session，不同的服务器如何共享session？](9%E3%80%81%E5%A6%82%E6%9E%9C%E9%83%A8%E7%BD%B2%E4%BA%86%E4%B8%A4%E5%8F%B0%E4%BA%91%E6%9C%8D%E5%8A%A1%E5%99%A8%EF%BC%8C%E7%99%BB%E5%BD%95%E5%8A%9F%E8%83%BD%E9%9C%80%E8%A6%81%E6%9C%8D%E5%8A%A1%E7%AB%AF%E4%BF%9D%E5%AD%98session%EF%BC%8C%E4%B8%8D%E5%90%8C%E7%9A%84%E6%9C%8D%E5%8A%A1%E5%99%A8%E5%A6%82%E4%BD%95%E5%85%B1%E4%BA%ABsession%EF%BC%9F.md) [10、nginx做静态服务和express做静态服务两者之间的区别是什么？](10%E3%80%81nginx%E5%81%9A%E9%9D%99%E6%80%81%E6%9C%8D%E5%8A%A1%E5%92%8Cexpress%E5%81%9A%E9%9D%99%E6%80%81%E6%9C%8D%E5%8A%A1%E4%B8%A4%E8%80%85%E4%B9%8B%E9%97%B4%E7%9A%84%E5%8C%BA%E5%88%AB%E6%98%AF%E4%BB%80%E4%B9%88%EF%BC%9F.md) [11、场景：新开发了一个功能，网站已经有一定的用户量，如何在不影响用户正常使用的情况下发行新功能，如何平滑更新？](11%E3%80%81%E5%9C%BA%E6%99%AF%EF%BC%9A%E6%96%B0%E5%BC%80%E5%8F%91%E4%BA%86%E4%B8%80%E4%B8%AA%E5%8A%9F%E8%83%BD%EF%BC%8C%E7%BD%91%E7%AB%99%E5%B7%B2%E7%BB%8F%E6%9C%89%E4%B8%80%E5%AE%9A%E7%9A%84%E7%94%A8%E6%88%B7%E9%87%8F%EF%BC%8C%E5%A6%82%E4%BD%95%E5%9C%A8%E4%B8%8D%E5%BD%B1%E5%93%8D%E7%94%A8%E6%88%B7%E6%AD%A3%E5%B8%B8%E4%BD%BF%E7%94%A8%E7%9A%84%E6%83%85%E5%86%B5%E4%B8%8B%E5%8F%91%E8%A1%8C%E6%96%B0%E5%8A%9F%E8%83%BD%EF%BC%8C%E5%A6%82%E4%BD%95%E5%B9%B3%E6%BB%91%E6%9B%B4%E6%96%B0%EF%BC%9F.md) [12、场景：如果一篇文章访问量激增，云服务器承受不住了，怎么办？](12%E3%80%81%E5%9C%BA%E6%99%AF%EF%BC%9A%E5%A6%82%E6%9E%9C%E4%B8%80%E7%AF%87%E6%96%87%E7%AB%A0%E8%AE%BF%E9%97%AE%E9%87%8F%E6%BF%80%E5%A2%9E%EF%BC%8C%E4%BA%91%E6%9C%8D%E5%8A%A1%E5%99%A8%E6%89%BF%E5%8F%97%E4%B8%8D%E4%BD%8F%E4%BA%86%EF%BC%8C%E6%80%8E%E4%B9%88%E5%8A%9E%EF%BC%9F.md) [13、场景：如果网站被大量爬虫，被恶意攻击，防范爬虫](13%E3%80%81%E5%9C%BA%E6%99%AF3%EF%BC%9A%E5%A6%82%E6%9E%9C%E7%BD%91%E7%AB%99%E8%A2%AB%E5%A4%A7%E9%87%8F%E7%88%AC%E8%99%AB%EF%BC%8C%E8%A2%AB%E6%81%B6%E6%84%8F%E6%94%BB%E5%87%BB%EF%BC%8C%E9%98%B2%E8%8C%83%E7%88%AC%E8%99%AB.md) [14、场景：如果博客开放了评论功能，如何防范恶意脚本注入？](14%E3%80%81%E5%9C%BA%E6%99%AF4%EF%BC%9A%E5%A6%82%E6%9E%9C%E5%8D%9A%E5%AE%A2%E5%BC%80%E6%94%BE%E4%BA%86%E8%AF%84%E8%AE%BA%E5%8A%9F%E8%83%BD%EF%BC%8C%E5%A6%82%E4%BD%95%E9%98%B2%E8%8C%83%E6%81%B6%E6%84%8F%E8%84%9A%E6%9C%AC%E6%B3%A8%E5%85%A5%EF%BC%9F.md) [15、场景：用户表单数据提交之后，服务端怎么对数据进行验证？](15%E3%80%81%E5%9C%BA%E6%99%AF%EF%BC%9A%E7%94%A8%E6%88%B7%E8%A1%A8%E5%8D%95%E6%95%B0%E6%8D%AE%E6%8F%90%E4%BA%A4%E4%B9%8B%E5%90%8E%EF%BC%8C%E6%9C%8D%E5%8A%A1%E7%AB%AF%E6%80%8E%E4%B9%88%E5%AF%B9%E6%95%B0%E6%8D%AE%E8%BF%9B%E8%A1%8C%E9%AA%8C%E8%AF%81%EF%BC%9F.md)