JavaScript函数参数的传递

js函数参数的传递方式是值传递。

基本类型的值传递的是变量的值

引用类型传递的是内存地址

实例如下：

var num = 10,    name = "Addy Osmani",    obj1 = {      value: "first value"    },    obj2 = {     value: "second value"    },    obj3 = obj2; function change(num, name, obj1, obj2) {    num = num * 10;    name = "Paul Irish";    obj1 = obj2;    obj2.value = "new value";       //改变了内存地址指向的变量的属性值} change(num, name, obj1, obj2);  console.log(num); // 10 console.log(name);// "Addy Osmani" console.log(obj1.value);//"first value" console.log(obj2.value);//"new value" console.log(obj3.value);//"new value"