observer-data

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

• observerData.opt.exclude
  • type:array
  • description:排除的属性，默认为空
• observerData.opt.include
  • type:array
  • description:包涵的属性，默认所有
• observerData.run(dep)
  • type:string
  • description:dep=='dep'那么初始化会执行一次cb
• observerData.cb
  • type:function
  • description:每次数据改变回调
• $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

• $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