第九课 代码封装localstorage
<template>
<div id="app">
<input type="text" v-model='todo' @keydown="doAdd($event)" />
<hr>
<br>
<h2>进行中</h2>
<ul>
<li v-for="(item,key) in list" v-if="!item.checked">
<input type="checkbox" v-model="item.checked" @change="saveList()" /> {{item.title}} -- <button @click="removeData(key)">删除</button>
</li>
</ul>
<br>
<br>
<h2>已完成</h2>
<ul>
<li v-for="(item,key) in list" v-if="item.checked">
<input type="checkbox" v-model="item.checked" @change="saveList()" /> {{item.title}} -- <button @click="removeData(key)">删除</button>
</li>
</ul>
</div>
</template>
<script>
import storage from './model/storage.js';
// console.log(storage);
export default {
data () {
return {
todo:'' ,
list: []
}
},
methods:{
// var storage={
// set(key,value){
// localStorage.setItem(key, JSON.stringify(value));
// },
// get(key){
// return JSON.parse(localStorage.getItem(key));
// },
// remove(key){
// localStorage.removeItem(key);
// }
// }
doAdd(e){
// console.log(e);
if(e.keyCode==13){
this.list.push({
title:this.todo,
checked:false
})
}
// 第一个参数：自定义与取值方法对应即可
// var list=storage.get('data_block');
storage.set('data_block',this.list);
},
removeData(key){
this.list.splice(key,1)
storage.set('data_block',this.list);
}
, saveList(){
storage.set('data_block',this.list);
}
},mounted(){ /*生命周期函数 vue页面刷新就会触发的方法*/
var list=storage.get('data_block');
if(list){ /*注意判断*/
this.list=list;
}
}
}
</script>
<style lang="scss">
.finish{
li{
background:#eee;
}
}
</style>
