使用vue制作一个简单的todolist

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/Heavy_Dream/article/details/85083359

水一下vue官方文档传送门：https://cn.vuejs.org/v2/api/

Demo基于vue build第一个项目上修改

• 目录结构

---

• App.vue文件

<template>
  <div id="app">
    <h1>{{title}}</h1>
    <h2 v-text="title"></h2>
    <h3 v-html="title"></h3>
    <input v-model="newItem" v-on:keyup.enter="addNew">
    <ul>
      <li v-for="item in items" :key="item.label" v-bind:class="{finished: item.isFinished}" v-on:click="toggleFinish(item)">
        {{item.label}}
      </li>
    </ul>
  </div>
</template>

<script>
import Storage from './storage'
// export相当于  new Vue({});
export default {
  // 相当于 date: function(){} 下面是ES6语法
  data () {
    return {
      title: '<span>渲染HTML</span> this is a todo list',
      items: Storage.fetch(),
      newItem: ''
    }
  },
  watch: {
    items: {
      handler: function (items) {
        Storage.save(items)
      },
      deep: true
    }
  },
  methods: {
    toggleFinish: function (item) {
      console.log(item.isFinished = !item.isFinished)
    },
    addNew: function () {
      this.items.push({
        label: this.newItem,
        isFinished: false
      })
      console.log(this.newItem)
      this.newItem = ''
    }
  }
}
</script>

<style>
#app {
  font-family: 'Avenir', Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}

.finished {
  text-decoration: underline;
}
</style>

---

• storage.js文件

const STORAGE_KEY = 'todos-vuejs'
export default {
  fetch: function () {
    return JSON.parse(window.localStorage.getItem(STORAGE_KEY) || '[]')
  },
  // es6写法
  save (items) {
    window.localStorage.setItem(STORAGE_KEY, JSON.stringify(items))
  }
}

---

• 效果图