Detailed explanation of dynamic use of v-model in vue-JS Tutorial-php.cn

Detailed explanation of dynamic use of v-model in vue

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Release： 2018-04-16 13:38:55

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This time I will bring you a detailed explanation of the dynamic use of v-model in vue. What are the precautions for the dynamic use of v-model in vue. The following is a practical case. Let’s take a look. take a look.

Foreword:

Recently, in a company project, there is such a requirement. Each row has an input and a select, and the number of rows changes dynamically based on the json data returned by the server. So the question is, how do we dynamically generate v-model?

Now that the project is finished, I have sorted it out and posted the code directly.

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title></title>
    <script type="text/javascript" src="js/vue.js" ></script>
  </head>
  <body>
    <p id="app">
      <p class="line" v-for="(item,index) in dataModel">
        <input type="text" v-model="dataModel[index].value1" />
        <span>{{dataModel[index].value1}}</span>
        <button v-bind:data-index="index" v-on:click="submitClick">提交</button>
        <input type="text" v-model="dataModel[index].value2" />
        <span>{{dataModel[index].value2}}</span>
      </p>
    </p>
  </body>
  <script>
    var app = new Vue({
      el: "#app",
      data: {
        // 创建一个空的数组 
        dataModel: []
      },
      created: function(){
        // 这里是动态生成v-model,这个可以放在网络请求成功里面;
        var len = 4;
        for (var i = 0; i < len; i ++) {
          var item = {value1: '',value2: ''};
          this.dataModel.push(item);
        }
      },
      methods: {
        // 显示v-model里面的数据
        submitClick: function(event){
          var tag = event.target;
          var index = tag.getAttribute('data-index');
          alert(this.dataModel[index].value1);
        }
      }
    })
  </script>
</html>

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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!