浅谈JS函数定义方式的区别

function slide(arguments){
//...code
}

var slide = function(arguments){
//...code
}

function factorial(num){
if(num<=1){
return 1;
}
else {
return numarguments.callee(num-1);
}
}
var anotherFactorial = factorial;
factorial = null;
console.log(anotherFactorial);//输出factorial(){}，有函数名

var factorial = function(num){
//...code
}
//...code
console.log(anotherFactorial);//输出function(){}，匿名函数