5.逆天插槽 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<!--:是v-bond的缩写-->
<div id="vue">
    <todo>
        <todo-title slot="todo-title" :title="title"></todo-title>
        <todo-items slot="todo-items" v-for="item in todoItems" :item="item"></todo-items>
    </todo>
</div>

<script src="https://cdn.jsdelivr.net/npm/vue@2.6.14/dist/vue.js"></script>
<script>
    Vue.component("todo",{//slot为插槽
        template:
        '<div>'+'<slot name="todo-title"></slot>'+'<ul>'+'<slot name="todo-items"></slot>'+'</ul>'+'</div>'
    });

    Vue.component("todo-title",{
        props:['title'],
        template: '<div>{{title}}</div>'
    })
    Vue.component("todo-items",{
        props: ['item'],
        template: '<li>{{item}}</li>'
    })
    var vm = new Vue({
        el: '#vue',
        data:{
            title: "123456",
            todoItems: ['Java','C++','C']
        }
    });
</script>
</body>
</html>

 

 进阶删除自定义事件

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<!--:是v-bond的缩写-->
<div id="vue">
    <todo>
        <todo-title slot="todo-title" :title="title"></todo-title>
        <todo-items slot="todo-items" v-for="(item,index) in todoItems"
                    :item="item" :index="index" v-on:remove="removeItems(index)" :key="index"></todo-items>
    </todo>
</div>

<script src="https://cdn.jsdelivr.net/npm/vue@2.6.14/dist/vue.js"></script>
<script>
    Vue.component("todo",{//slot为插槽
        template:
        '<div>'+'<slot name="todo-title"></slot>'+'<ul>'+'<slot name="todo-items"></slot>'+'</ul>'+'</div>'
    });

    Vue.component("todo-title",{
        props:['title'],
        template: '<div>{{title}}</div>'
    })
    Vue.component("todo-items",{
        props: ['item','index'],
        //只能绑定当前组件的方法
        template: '<li>{{index}}---{{item}}<button @click="remove">删除</button></li>',
        methods:{
            remove:function (index) {
                //自定义事件分发
                this.$emit('remove',index);
            }
        }
    })
    var vm = new Vue({
        el: '#vue',
        data:{
            title: "123456",
            todoItems: ['Java','C++','C']
        },
        methods:{
            removeItems:function (index) {
                this.todoItems.splice(index,1);//一次删除一个元素
            }
        }
    });
</script>
</body>
</html>

 

 

 

posted @ 2021-06-29 23:00  一拳超人的逆袭  阅读(27)  评论(0)  编辑  收藏  举报