javascript高级

javascript 高级

01.作用域和作用域链

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02.垃圾回收机制以及算法

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循环引用

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03.闭包

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下面的代码和python 中装饰器的实现原理相同

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04.变量和函数提升

var 变量提升

1. 把所有var 声明的变量提升到当前作用域的最前面
2. 只提升声明， 不提升赋值

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05.函数剩余参数和展开运算符

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06.ES6箭头函数的使用

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07.数组解构

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08.对象解构

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09.forEach 遍历数组

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10.创建对象的方式

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11.构造函数

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12.new 实例化执行过程

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13.实例成员和静态成员

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14.内置构造函数

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可以去 mdn 网站 查询每个函数的具体用法

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15.两种编程思想

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16.构造函数实现封装及存在的问题

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17.原型对象prototype

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18.constructor属性及其应用

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19.对象原型__proto__

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20.原型继承

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21.原型链

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22.案例

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23.浅拷贝

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24.深拷贝

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25.使用 lodash 和 JSON实现深拷贝

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26.异常处理

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27.普通函数和箭头函数的this

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28.call 方法和 apply 方法改变this 指向

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29.bind 方法 改变 this

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30.性能优化中的防抖和底层实现

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31.性能优化中的节流和底层实现

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lodash 网站： https://www.lodashjs.com/

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32.防抖和节流总结

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33.节流案例-记录视频播放时间

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posted @ 2025-10-04 09:41  Ref-brief  阅读(7)  评论(2)    收藏  举报