vue 做一个简单的TodoList

目录结构

index.html

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width,initial-scale=1.0">
    <title>vue-demo</title>
  </head>
  <body>
    <div class="app"></div>

    <!-- built files will be auto injected -->
  </body>
</html>

　　main.js

// The Vue build version to load with the `import` command
// (runtime-only or standalone) has been set in webpack.base.conf with an alias.
import Vue from 'vue'
import TodoList from './TodoList'
import router from './router'


Vue.config.productionTip = false

/* eslint-disable no-new */
new Vue({
  el: '.app',
  router,
  components: { TodoList },
  template: '<TodoList/>'
})

TodoList.vue文件

<template>
  <div>
    <input type="text" v-model="inputValue">
    <button v-on:click="handleSubmit">提交</button>
    <ul>
      <todo-item v-for="(item,index) of list" :key="index" :content="item" :index="index" @delete="handleDelete">

      </todo-item>

    </ul>


  </div>
</template>

<script>
  //导入componets下的组件todoItem.vue
  import todoItem from './components/todoItem'

  //局部组件的注册和声明,之后在本页面使用局部组件todo-item
  export default {
  components:{
    'todo-item':todoItem,
  },
    data(){
      return {
        inputValue:'',
        list:[]
      }
    },
    methods:{
      handleSubmit(){
        this.list.push(this.inputValue)
        this.inputValue=''

      },
      //点击ul下的li,删除对应的项,通过index标识
      handleDelete(index){
        this.list.splice(index,1)
      }
    }
}
</script>

<style>

</style>


todoItem.vue文件
<template>
  <li v-on:click="handleDelte">{{content}}</li>

</template>

<script>
export default {
//  父子组件传值如此通信
//  子组件通过props接收父组件传来的值
  props:['content','index'],

  methods:{
    handleDelte(){
      console.log(this.index)
    //  子组件触发了事件出去,父组件那边需要监听并处理
      this.$emit('delete',this.index)
    }
  }

}
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>

</style>
posted @ 2019-09-17 16:35  前端那点事  阅读(4930)  评论(0)  编辑  收藏  举报