observe.js - 用于觀察任意對象的任意變化的類庫，以輕巧、實用、強大而聞名

用于觀察任意對象的任意變化的類庫，以輕巧、實用、強大而聞名。

3分鐘精通observe.js

對象字面量

var obj = { a: 1 };
//watch obj
observe(obj, function (name, value) {
    console.log(name + "__" + value);//a__2 
});
obj.a = 2;

數組

var arr = [1, 2, 3];
//watch obj
observe(arr, function (name, value, old) {
    console.log(name + "__" + value+"__"+old);
});
arr.push(4);//array__push_4 
arr[3] = 5;//3__5_4

復雜對象

var complexObj = { a: 1, b: 2, c: [{ d: [4] }] };
//watch complexObj
observe(complexObj, function (name, value) {
    console.log(name + "__" + value);    //d__100 
});
complexObj.c[0].d = 100;

普通對象

var User = function (name, age) {
    this.name = name;
    this.age = age;
    //只監聽name
    observe(this,["name"] function (name, value, oldValue) {
        console.log(name + "__" + value + "__" + oldValue);//name__wangwu__lisi 
    });
}
var user = new User("lisi", 25);
user.name = "wangwu";

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