JavaScript-预编译
预编译预编译阶段:作用域的创建阶段function fn(a,c){ console.log(a); var a = 123; console.log(a); console.log(c); function a(){}; if(false){ var d = 678; } console.log(d); console.log(b); var b = function(){}; console.log(b); function c(){}; console.log(
原创
2021-10-21 11:40:27 ·
194 阅读 ·
1 评论