observer-data

Observer data、defineProperty

install

npm i observer-data --save

use

let ObserverData = require('observer-data');//cjs
//let ObserverData = require('xxx/node_modules/observer-data.umd.js');//umd
//let ObserverData = require('xxx/node_modules/observer-data.js');//cmd
//<script type="text/javascript" src="xxx/node_modules/observer-data.js"></script>//script

let observerData = new ObserverData();

observerData.data = data;
observerData.cb = function(newVal, key, oldVal){}
observerData.run();

api

1. observerData.opt.exclude

   • type:array
   • description:排除的属性，默认为空

2. observerData.opt.include

   • type:array
   • description:包涵的属性，默认所有

3. observerData.run(dep)

   • type:string
   • description:dep=='dep'那么初始化会执行一次cb

4. observerData.cb

   • type:function
   • description:每次数据改变回调

5. $set

   • type:function

   • description:为新数据绑定监听事件

   • example :

     let data = {a:1}...

     data.$set('b',2);//新绑定了一个b属性

6. $del

   • type:function

   • description:删除属性清除监听并触发回调

   • example :

     let data = {a:1,b:2}...

     data.$del('b');//解除b属性的绑定并且删除触发回调。

ps:数组经过重写，按原有方法使用也会触发监听。

Community

github npm