摘要:
1. A box, container, or a wrapper which store variables and in which a piece of our code is evaluated and executed. 2. global execution context (1) Co 阅读全文
摘要:
1.什么是函数声明和函数表达式 (1)函数声明(function declaration),通过function 关键字,functionName函数名,arg参数(可选)定义的函数。 funcrion calculateAge(year) {.....} (2)函数表达式: 将函数声明赋值给一个变 阅读全文