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Vue.js two-way binding implementation steps instructions

php中世界最好的语言Original: 2018-05-14 11:18:331505browse

This time I will bring you the steps to implement Vue.js two-way binding. What are the precautions for Vue.js two-way binding implementation? The following is a practical case, let's take a look.

This article is about experiencing the two-way binding of VUE

<html>
<head>
  <meta charset="utf-8">
</head>
<body>
  <script src="https://unpkg.com/vue/dist/vue.min.js"></script>
  <p id="app">
    <input type="text" v-model="CurrentTime" placeholder="当前时刻">
    <h1>当前时刻{{ CurrentTime }}</h1>
  </p>
  <script>
  var app = new Vue({
    el:'#app',
    data:{
      CurrentTime: new Date()
    },
    mounted:function(){
      var _this = this;
      this.timer = setInterval(function(){
        _this.CurrentTime = new Date();
      },1000);
    },
    beforeDestroy:function(){
      if(this.timer){
        clearInterval(this.timer);
      }
    }
  });
  </script>
</body>
</html>

{{ }} is the so-called text interpolation method, the purpose is to display the two-way binding Data

mounted represents the event called when el is mounted to the instance.

beforeDestory is the

called before the instance is destroyed. In the above example, in the mounted event A timer is created in and the current time is written into the text box every second. Due to the two-way binding, the text of the H1 tag will also change and be consistent with the text of the text box. . In the beforeDestory event, the timer will be cleared before the Vue instance is destroyed

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the PHP Chinese website!

Vue.js two-way binding implementation steps instructions

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