你遇到过哪些质量比较高的前端面试问题？
最好别说是哪个公司的，我说一个我遇到的一个，如何不用canvas实现一个均匀的圆周运动动画。（答案提示Math.sin(x),x=x+0.01,position,top,left.）。不是很高深，也不是算法问题，但是的确考验你对前端一些常用的细节考察了理解。不幸的是，面试中我只想到用非均匀方法。
回复内容：
一个网页从地址栏输入url到最后在浏览器中显示，中间经过了那些过程？ 你有没有自己完整的抓取过一个包，研究里面都发生了什么内容 我记得大学刚毕业的不久面试一家公司，问我介意经常加班吗？ 重构的问题：你对line-height是如何理解的。
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