Original design patterns: MVP
M 模型 数据 V 视图 触发事件 P 控制器 负责业务逻辑New Design Patterns: MVVM
M层 script 主要M层开发 面向数据编程 V层 html VM层 进行逻辑（自动改变）- VM layer? ? ? ? ? ?
- Virtual dom ???
- define proxy mode? ? ?
Components of the project
- Each component is the area of the page.
1. Global Components
Vue.component('todo-item',{
props:['content'],
template:"<li>{{content}}</li>"
});2. The sub-assembly
var TodoItem = {
props:['content'],
template:"<li>{{content}}</li>"
};- Local assemblies need to register
// 在实例中进行注册
var vm = new Vue({
el:"#app",
// 局部组件注册
components:{
TodoItem:TodoItem
},
})3 pass values to the parent component subassembly
Parent component by v-bind: xxx = "xxx" to bind the values of mass, is defined by the sub-assembly by The props, which parent component value came to accept,
v-bind:子组件props接收要穿值的名字=父组件变量的名字
4 sub-assembly to the parent component value transfer
- Event subassembly by $ emit, that will trigger the spread parent component, the parent component by listening to the event, to change the value of
// 子组件绑定要触发事件 @click='handelItemClick'
handelItemClick:function () {
this.$emit('delete',this.index)
}
//通过$emit触发事件，并传值。
//父组件在标签上监听该delete事件,并绑定处理方法
@delete="handelItemDelete"
//父组件定义handelItemDelete，将传来的数据，在当前实例中修改
handelItemDelete:function (indexvalue) {
this.list.splice(indexvalue,1)
}- v-bind: equal to: v-on: is equal to:
5 a component Todolist
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<script src="./vue.js"></script>
<body>
<div id="app">
<input type="text" v-model="inputValue">
<button @click="handlebtnClisk">提交</button>
<ul>
<todo-item v-for="(item,index) in list"
v-bind:index="index"
v-bind:content="item"
@delete="handelItemDelete"
>{{item}}</todo-item>
</ul>
</div>
</body>
<script>
// 全局组件
// Vue.component('todo-item',{
// props:['content'],
// template:"<li>{{content}}</li>"
// });
// 局部组件
var TodoItem = {
props:['content','index'],
template:"<li @click='handelItemClick'>{{content}}</li>",
methods:{
handelItemClick:function () {
this.$emit('delete',this.index)
}
}
};
var vm = new Vue({
// el限制一个vue实例的管理范围。
el:"#app",
// 局部组件注册
components:{
TodoItem:TodoItem
},
data:{
list:[],
inputValue:""
},
methods:{
handlebtnClisk:function () {
this.list.push(this.inputValue);
this.inputValue = ""
},
handelItemDelete:function (indexvalue) {
this.list.splice(indexvalue,1)
}
}
});
</script>
</html>