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# Daily-Interview-Question
加入前端「壹题」学习小组,尽在公众号「高级前端进阶」,进阶共勉之!
工作日每天一道大厂前端面试题,一年后再回头,会感谢曾经努力的自己!
[线上版本阅读更流畅,点击阅读](https://muyiy.vip/question/)
<br/>
## 今日面试题
2019-08-05
> 第 120 题:为什么 for 循环嵌套顺序会影响性能?
```js
var t1 = new Date().getTime()
for (let i = 0; i < 100; i++) {
for (let j = 0; j < 1000; j++) {
for (let k = 0; k < 10000; k++) {
}
}
}
var t2 = new Date().getTime()
console.log('first time', t2 - t1)
for (let i = 0; i < 10000; i++) {
for (let j = 0; j < 1000; j++) {
for (let k = 0; k < 100; k++) {
}
}
}
var t3 = new Date().getTime()
console.log('two time', t3 - t2)
```
解析:[第 120 题](https://github.com/Advanced-Frontend/Daily-Interview-Question/issues/235)
<br/>
## 本周汇总
<br/>
## 所有面试题汇总
- [壹题所有题目及答案汇总](https://github.com/Advanced-Frontend/Daily-Interview-Question/blob/master/datum/summary.md)
<br/>
## 半月刊
- [前端 100 问:能搞懂 80% 的请把简历给我](https://github.com/yygmind/blog/issues/43)
- [【半月刊 1】前端高频面试题及答案汇总](https://juejin.im/post/5c6977e46fb9a049fd1063dc)
- [【半月刊 2】前端高频面试题及答案汇总](https://juejin.im/post/5c7bd72ef265da2de80f7f17)
- [【半月刊 3】前端高频面试题及答案汇总](https://juejin.im/post/5c9ac3f66fb9a070e056718f)
- [【半月刊 4】前端高频面试题及答案汇总](https://juejin.im/post/5cb3376bf265da039c0543da)
<br/>
## 联系我
进阶系列文章汇总如下,觉得不错点个 star,欢迎 **加群** 互相学习。
> [https://github.com/yygmind/blog](https://github.com/yygmind/blog)
我是木易杨,公众号「高级前端进阶」作者,跟着我**每周重点攻克一个前端面试重难点**。接下来让我带你走进高级前端的世界,在进阶的路上,共勉!
