JavaScript库：observejs
jopen
10年前
observejs 用于观察任意对象的任意变化的类库，以轻巧、实用、强大而闻名。
ps:源代码未压缩版仅仅只有158行代码:)
3分钟精通 observe.js
对象字面量
var obj = { a: 1 }; observe(obj, function (name, value , old) { console.log(name + "__" + value + "__" + old); }); obj.a = 2; //a__2__1 数组
var arr = [1, 2, 3]; observe(arr, function (name, value, old) { console.log(name + "__" + value+"__"+old); }); arr.push(4);//Array-push__[1,2,3,4]__[1,2,3] arr[3] = 5;//3__5__4 复杂对象
var complexObj = { a: 1, b: 2, c: [{ d: [4] }] }; observe(complexObj, function (name, value , old, path) { console.log(name + "__" + value + "__" + old); //d__100__4 console.log(path) //#-c-0 }); complexObj.c[0].d = 100; 普通对象
var User = function (name, age) { this.name = name; this.age = age; //只监听name observe(this,["name"] function (name, value, oldValue) { console.log(name + "__" + value + "__" + oldValue); }); } var user = new User("lisi", 25); user.name = "wangwu";//name__wangwu__lisi user.age= 20; //什么都输出，因为没有监听age