Question

JS中创建函数的几种方法

Answer 1

推荐几篇博客给你，其实这种问题博客或者知乎等都是有大把大把的比较不错的回答了
1、https://blog.csdn.net/JinPingQ/article/details/84335179
2、https://segmentfault.com/a/1190000017970415?utm_source=tag-newest
3、https://www.jb51.net/article/107012.htm
把这几篇博客的内容自己整合一下，就了解的差不多了

Answer 2

//可用来传参(function(x,y){ console.log(x+y);})(2,3); //带返回值var sum=(function(x,y){ return x+y;})(2,3);console.log(sum); ~function(){ var name='~' console.log(name);}(); !function(){ var name='!' console.log(name);}(); ;(function(){ var name=';' console.log(name);})(); -function(){ var name='-' console.log(name);}(); //逗号运算符1,function(){ var name=','; console.log(name);}(); //异或1^function(){ var name='^'; console.log(name);}(); //比较运算符1>function(){ var name='>'; console.log(name);}(); ~+-!(function(){ var name='~+-!'; console.log(name);})(); ~!(function(){ var name='~!'; console.log(name);})(); (function(){ var name='call'; console.log(name);}).call(); (function(){ var name='apply'; console.log(name);}).apply();