【202307】菜鸟直管（西安）前端面试 · 大厂前端面试真题

[1、编程：使用Js中的reduce方法，对给定数组里的值进行求和操作](1%E3%80%81%E7%BC%96%E7%A8%8B%EF%BC%9A%E4%BD%BF%E7%94%A8Js%E4%B8%AD%E7%9A%84reduce%E6%96%B9%E6%B3%95%EF%BC%8C%E5%AF%B9%E7%BB%99%E5%AE%9A%E6%95%B0%E7%BB%84%E9%87%8C%E7%9A%84%E5%80%BC%E8%BF%9B%E8%A1%8C%E6%B1%82%E5%92%8C%E6%93%8D%E4%BD%9C.md) [2、编程：使用正则表达式，取出给定字符串中的数字](2%E3%80%81%E7%BC%96%E7%A8%8B%EF%BC%9A%E4%BD%BF%E7%94%A8%E6%AD%A3%E5%88%99%E8%A1%A8%E8%BE%BE%E5%BC%8F%EF%BC%8C%E5%8F%96%E5%87%BA%E7%BB%99%E5%AE%9A%E5%AD%97%E7%AC%A6%E4%B8%B2%E4%B8%AD%E7%9A%84%E6%95%B0%E5%AD%97.md) [3、编程：根据js的闭包原理，实现一个函数，每次调用时都会使值+1](3%E3%80%81%E7%BC%96%E7%A8%8B%EF%BC%9A%E6%A0%B9%E6%8D%AEjs%E7%9A%84%E9%97%AD%E5%8C%85%E5%8E%9F%E7%90%86%EF%BC%8C%E5%AE%9E%E7%8E%B0%E4%B8%80%E4%B8%AA%E5%87%BD%E6%95%B0%EF%BC%8C%E6%AF%8F%E6%AC%A1%E8%B0%83%E7%94%A8%E6%97%B6%E9%83%BD%E4%BC%9A%E4%BD%BF%E5%80%BC+1.md) [4、编程：实现一个函数，将给定字符串中的单词首字母变为大写](4%E3%80%81%E7%BC%96%E7%A8%8B%EF%BC%9A%E5%AE%9E%E7%8E%B0%E4%B8%80%E4%B8%AA%E5%87%BD%E6%95%B0%EF%BC%8C%E5%B0%86%E7%BB%99%E5%AE%9A%E5%AD%97%E7%AC%A6%E4%B8%B2%E4%B8%AD%E7%9A%84%E5%8D%95%E8%AF%8D%E9%A6%96%E5%AD%97%E6%AF%8D%E5%8F%98%E4%B8%BA%E5%A4%A7%E5%86%99.md) [5、编程：将一个回调嵌套形式的函数改用promise实现](5%E3%80%81%E5%B0%86%E4%B8%80%E4%B8%AA%E5%9B%9E%E8%B0%83%E5%B5%8C%E5%A5%97%E5%BD%A2%E5%BC%8F%E7%9A%84%E5%87%BD%E6%95%B0%E6%94%B9%E7%94%A8promise%E5%AE%9E%E7%8E%B0.md) [6、编程：实现一个函数，传入一个给定对象，要求将其中值为null undefined 的属性去掉，要求不能改变原对象（纯函数）](6%E3%80%81%E7%BC%96%E7%A8%8B%EF%BC%9A%E5%AE%9E%E7%8E%B0%E4%B8%80%E4%B8%AA%E5%87%BD%E6%95%B0%EF%BC%8C%E4%BC%A0%E5%85%A5%E4%B8%80%E4%B8%AA%E7%BB%99%E5%AE%9A%E5%AF%B9%E8%B1%A1%EF%BC%8C%E8%A6%81%E6%B1%82%E5%B0%86%E5%85%B6%E4%B8%AD%E5%80%BC%E4%B8%BAnullundefined%E7%9A%84%E5%B1%9E%E6%80%A7%E5%8E%BB%E6%8E%89%EF%BC%8C%E8%A6%81%E6%B1%82%E4%B8%8D%E8%83%BD%E6%94%B9%E5%8F%98%E5%8E%9F%E5%AF%B9%E8%B1%A1%EF%BC%88%E7%BA%AF%E5%87%BD%E6%95%B0%EF%BC%89.md) [7、编程：实现一个函数，将给定数组转化为树形结构（实现方式不限，循环与递归均可）](7%E3%80%81%E7%BC%96%E7%A8%8B%EF%BC%9A%E5%AE%9E%E7%8E%B0%E4%B8%80%E4%B8%AA%E5%87%BD%E6%95%B0%EF%BC%8C%E5%B0%86%E7%BB%99%E5%AE%9A%E6%95%B0%E7%BB%84%E8%BD%AC%E5%8C%96%E4%B8%BA%E6%A0%91%E5%BD%A2%E7%BB%93%E6%9E%84%EF%BC%88%E5%AE%9E%E7%8E%B0%E6%96%B9%E5%BC%8F%E4%B8%8D%E9%99%90%EF%BC%8C%E5%BE%AA%E7%8E%AF%E4%B8%8E%E9%80%92%E5%BD%92%E5%9D%87%E5%8F%AF%EF%BC%89.md) [8、说说es6+你常用的方法和特性](8%E3%80%81%E8%AF%B4%E8%AF%B4es6+%E4%BD%A0%E5%B8%B8%E7%94%A8%E7%9A%84%E6%96%B9%E6%B3%95%E5%92%8C%E7%89%B9%E6%80%A7.md) [9、let const之间有什么区别，let又与var有什么区别？](9%E3%80%81letconst%E4%B9%8B%E9%97%B4%E6%9C%89%E4%BB%80%E4%B9%88%E5%8C%BA%E5%88%AB%EF%BC%8Clet%E5%8F%88%E4%B8%8Evar%E6%9C%89%E4%BB%80%E4%B9%88%E5%8C%BA%E5%88%AB%EF%BC%9F.md) [10、对于被const修饰的对象，可否修改其中属性的值，原因是什么？](10%E3%80%81%E5%AF%B9%E4%BA%8E%E8%A2%ABconst%E4%BF%AE%E9%A5%B0%E7%9A%84%E5%AF%B9%E8%B1%A1%EF%BC%8C%E5%8F%AF%E5%90%A6%E4%BF%AE%E6%94%B9%E5%85%B6%E4%B8%AD%E5%B1%9E%E6%80%A7%E7%9A%84%E5%80%BC%EF%BC%8C%E5%8E%9F%E5%9B%A0%E6%98%AF%E4%BB%80%E4%B9%88%EF%BC%9F.md) [11、Vue2/3之前底层响应式实现有什么区别，Vue2的响应式有什么缺陷？](11%E3%80%81Vue2-3%E4%B9%8B%E5%89%8D%E5%BA%95%E5%B1%82%E5%93%8D%E5%BA%94%E5%BC%8F%E5%AE%9E%E7%8E%B0%E6%9C%89%E4%BB%80%E4%B9%88%E5%8C%BA%E5%88%AB%EF%BC%8CVue2%E7%9A%84%E5%93%8D%E5%BA%94%E5%BC%8F%E6%9C%89%E4%BB%80%E4%B9%88%E7%BC%BA%E9%99%B7%EF%BC%9F.md) [12、React和Vue的区别](12%E3%80%81React%E5%92%8CVue%E7%9A%84%E5%8C%BA%E5%88%AB.md) [13、React fiber架构解决了什么问题?](13%E3%80%81Reactfiber%E6%9E%B6%E6%9E%84%E8%A7%A3%E5%86%B3%E4%BA%86%E4%BB%80%E4%B9%88%E9%97%AE%E9%A2%98.md) [14、hooks的出现，解决了什么问题？](14%E3%80%81hooks%E7%9A%84%E5%87%BA%E7%8E%B0%EF%BC%8C%E8%A7%A3%E5%86%B3%E4%BA%86%E4%BB%80%E4%B9%88%E9%97%AE%E9%A2%98%EF%BC%9F.md) [15、之前的项目中，对于开发环境而言，跨域是如何解决的？](15%E3%80%81%E4%B9%8B%E5%89%8D%E7%9A%84%E9%A1%B9%E7%9B%AE%E4%B8%AD%EF%BC%8C%E5%AF%B9%E4%BA%8E%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83%E8%80%8C%E8%A8%80%EF%BC%8C%E8%B7%A8%E5%9F%9F%E6%98%AF%E5%A6%82%E4%BD%95%E8%A7%A3%E5%86%B3%E7%9A%84%EF%BC%9F.md) [16、之前项目中的提交、发布流程是怎么样的？](16%E3%80%81%E4%B9%8B%E5%89%8D%E9%A1%B9%E7%9B%AE%E4%B8%AD%E7%9A%84%E6%8F%90%E4%BA%A4%E3%80%81%E5%8F%91%E5%B8%83%E6%B5%81%E7%A8%8B%E6%98%AF%E6%80%8E%E4%B9%88%E6%A0%B7%E7%9A%84%EF%BC%9F.md)