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这一周学习了JS的高级内容,也察觉到了自己在生活中上应该注意的一些事项。
在学习上:本周学习的js高级内容包括:原型,闭包,创建模式与继承,线程等等。其中闭包与执行上下文在统计个数的时候有一些相同。闭包是
在嵌套内部函数定义执行完时就产生了(不是在调用时)而执行上下文是在调用时产生,定义时不产生。创建模式分为三种:
方式一:Object构造函数模式
*套路:先创建空Object对象,在添加动态属性/方法
*使用场景:起始时不确定对象内部数据
*问题:语句太多
方式二:对象字面量模式
*套路:使用{}创建对象,同时指定属性/方法
*使用场景:起始时对象内部的数据是正确的
*问题:如果创建多个对象,有重复的代码
方式三:工厂模式
*套路:通过工厂函数动态创建对象并返回
*使用场景:需要创建多个对象
*问题:对象没有一个具体类型,都是Object类型
接下来的学习中我又知道了继承中常用的三种方式,分别是:原型链继承,借用构造函数继承,组合继承。
在生活中,我明白任何事情都要提前做好规划,否则当问题来的时候可能会非常多,因为你把它们都堆积到一个时间段了。
下一个阶段的学习计划:通过此次考核,发现自己不足的地方及时进行补救。