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Detailed example of chat room for communication between father and son in vue component
Detailed example of chat room for communication between father and son in vue component
This article mainly introduces in detail the creation of a comprehensive practice chat room for parent-child communication in the Vue component. It has a certain reference value. Interested friends can refer to it. I hope it can help everyone.
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<title>组件父子间通信之综合练习</title>
<script src="js/vue.js"></script>
</head>
<body>
<p id="container">
<p>{{msg}}</p>
<chat-room></chat-room>
</p>
<script>
// 创建父组件
Vue.component("chat-room",{
//data属性中的chatList保存用户聊天信息
data:function(){
return{
chatList:[]
}
},
template:`
<p>
//假的聊天室
<h1>假的聊天室</h1>
<user-component userName="Rose"></user-component>
<user-component userName="Jack"></user-component>
//显示用户的聊天信息
<ul>
<li v-for="tmp in chatList">{{tmp}}</li>
</ul>
</p>
`
})
//创建子组件
Vue.component("user-component",{
props:["userName"],
//通过v-model把用户输入的数据保存到userInput数组
data:function(){
return {
userInput:[]
}
},
methods:{
//把用户输入的数据以及用户名label信息push给chatList数组
sendChat:function(){
this.$parent.chatList.push(this.userName+":"+this.userInput);
//情况input框
this.userInput =" ";
}
},
template:`
<p>
<label>{{userName}}</label>
<input type="text" v-model="userInput"/>
<button @click="sendChat">发送</button>
</p>
`
})
new Vue({
el:"#container",
data:{
msg:"Hello VueJs"
}
})
</script>
</body>
</html> Comprehensive exercise on inter-component communication:
(props down, events up)
There are 2 components: chat-room, user-component
user-component is composed of label input button
chat-room is composed of two user-component and a list
① Call user-component in chat-room to specify the name of the label
② In user-component,
When the button is clicked, the information entered by the current user is sent to the chat-room component, and chat-room receives the data and displays it in the list
Code:
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<script src="js/vue.js"></script>
<title></title>
</head>
<body>
<p id="container">
<chat-room></chat-room>
</p>
<script>
Vue.component('chat-room',{
methods:{
recvMsg:function(msg){
console.log("在父组件中接收子组件传来的数据"+msg);
this.chatList.push(msg);
}
},
data: function () {
return {
chatList:[]
}
},
template:`
<p>
<h1>假的聊天室</h1>
<ul>
<li v-for="tmp in chatList">
{{tmp}}
</li>
</ul>
<user-component userName="Lucy" @sendToFather="recvMsg"></user-component>
<user-component userName="Merry" @sendToFather="recvMsg"></user-component>
</p>
`
})
Vue.component('user-component',{
props:['userName'],
data: function () {
return {
userInput:''
}
},
methods:{
sendToFather: function () {
//触发toFatherEvent的事件，把input中
//用户输入的数据发送
this.$emit("sendToFather",this.userName+":"+this.userInput);
}
},
template:`
<p>
<label>{{userName}}</label>
<input type="text" v-model="userInput"/>
<button @click="sendToFather">发送</button>
</p>
`
})
new Vue({
el: '#container',
data: {
msg: 'Hello Vue'
}
})
</script>
</body>
</html>Related recommendations:
How to develop a chat room with PHP
Write multi-person real-time online chat with Node.js Room
How to create a simple chat room using php websocket
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