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Vue.js(4)- 生命周期

时间:2018-11-13 20:40:05      阅读:214      评论:0      收藏:0      [点我收藏+]

标签:view   双向数据绑定   create   var   逻辑   width   vue.js   console   red   

https://segmentfault.com/a/1190000008010666?utm_source=tag-newest

https://segmentfault.com/a/1190000008771768

https://www.cnblogs.com/happ0/p/8075562.html

MVVM框架

M:model层 —— 数据和业务逻辑

V:view层 —— 负责界面和显示

VM:ViewModel层 —— 包括界面逻辑和模型数据封装(双向数据绑定)

lifecycle

var vm = new Vue({
    el: ‘#app‘,
    data: {},
    methods:{},
})

当new的时候,就创建了一个vue实例,这个实例就是vue框架的入口,也是VM层

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <script src="./vue-2.5.16.js"></script>
</head>

<body>
  <div id="app">
    <input type="text" v-model="message">
    <h2>{{message}}</h2>
  </div>
  <script>
    var vm = new Vue({
      el: "#app",
      data: {
        message: my words
      },
      beforeCreate() {
        console.group("beforeCreate");
        console.log("%c%s", "color:red", "el     : " + this.$el); 
        console.log("%c%s", "color:red", "data   : " + this.$data);  
        console.log("%c%s", "color:red", "message: " + this.message)
      },
      created() {
        console.group("created");
        console.log("%c%s", "color:red", "el     : " + this.$el); 
        console.log("%c%s", "color:red", "data   : " + this.$data);  
        console.log("%c%s", "color:red", "message: " + this.message)
      },
      beforeMount() {
        console.group("beforeMount");
        console.log("%c%s", "color:red", "el     : " + this.$el); 
        console.log("%c%s", "color:red", "data   : " + this.$data);  
        console.log("%c%s", "color:red", "message: " + this.message)
      },
      mounted() {
        console.group("mounted");
        console.log("%c%s", "color:red", "el     : " + this.$el); 
        console.log("%c%s", "color:red", "data   : " + this.$data);  
        console.log("%c%s", "color:red", "message: " + this.message)
      },
      beforeUpdate() {
        console.group("beforeUpdate");
        console.log("%c%s", "color:red", "el     : " + this.$el); 
        console.log("%c%s", "color:red", "data   : " + this.$data);  
        console.log("%c%s", "color:red", "message: " + this.message)
      },
      updated() {
        console.group("updated");
        console.log("%c%s", "color:red", "el     : " + this.$el); 
        console.log("%c%s", "color:red", "data   : " + this.$data);  
        console.log("%c%s", "color:red", "message: " + this.message)
      },
      beforeDestroy() {
        console.group("beforeDestroy");
        console.log("%c%s", "color:red", "el     : " + this.$el); 
        console.log("%c%s", "color:red", "data   : " + this.$data);  
        console.log("%c%s", "color:red", "message: " + this.message)
      },
      destroyed() {
        console.group("destroyed");
        console.log("%c%s", "color:red", "el     : " + this.$el); 
        console.log("%c%s", "color:red", "data   : " + this.$data);  
        console.log("%c%s", "color:red", "message: " + this.message)
      },
    })
  </script>
</body>

</html>

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技术分享图片

Vue.js(4)- 生命周期

标签:view   双向数据绑定   create   var   逻辑   width   vue.js   console   red   

原文地址:https://www.cnblogs.com/houfee/p/9923028.html

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