Vue.js form control practice-JS Tutorial-php.cn

Vue.js form control practice

高洛峰

Release： 2016-12-08 15:30:34

Original

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In recent projects, vue has been used to replace the cumbersome jquery to handle dom data updates. I personally like it very much, so I went to the official website to practice it a little.

The following is the practice of form control, the code is respectful, create a new html file directly, paste and copy to see the effect

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>PlayAround2 Have Fun</title>
 <script src="https://cdn.jsdelivr.net/vue/1.0.26/vue.min.js"></script>
 <style>
  h2{
   text-decoration:underline;
  }
  .red{
   color: red;
  }
  .green{
   color: green;
  }
 </style>
</head>
<body>
 <div id="app">
 
  <h2>checkBox</h2>
  <input type="checkbox" v-model="checked">
  <label>{{checked}}</label>
 
  <h2>multi checkbox</h2>
  <input type="checkbox" id="Kobe" value="Kobe" v-model="names">
  <label for="Kobe">Kobe</label>
  <input type="checkbox" id="Curry" value="Curry" v-model="names">
  <label for="Curry">Curry</label>
  <input type="checkbox" id="Aaron" value="Aaron" v-model="names">
  <label for="Aaron">Aaron</label>
  <br>
  <span>Checked names: {{names | json}}</span>
 
  <h2>Radio</h2>
  <input type="radio" id="one" value="one" v-model="picked">
  <label for="one">one</label>
  <br>
  <input type="radio" id="two" value="two" v-model="picked">
  <label for="two">two</label>
  <br>
  <span>Picked: {{picked}}</span>
 
  <h2>Select</h2>
  <select v-model="selected">
   <option selected>Kobe</option>
   <option>Curry</option>
   <option>Aaron</option>
  </select>
  <span>Selected: {{selected}}</span>
 
  <h2>Multi Select</h2>
  <select multiple v-model="multiSelected">
   <option>Kobe</option>
   <option>Curry</option>
   <option>Aaron</option>
  </select>
  <span>Selected: {{multiSelected}}</span>
 
 
  <h2>Select with for</h2>
  <select v-model="selectedPlayer">
   <option v-for="option in options" :value="option.value">{{option.text}}</option>
  </select>
  <span>Selected: {{selectedPlayer}}</span>
 
  <h2>Lazy-改变更新的事件从input->change</h2>
  <input v-model="msg" lazy>
  <span>Msg:{{msg}}</span>
 
  <h2>Number(没啥吊用。。。.2->0.2,仅此而已吗?)</h2>
  <input v-model="age" number>
  <span>age:{{age}}</span>
 
  <h2>debounce-延迟更新view</h2>
  <p>Edit me<input v-model="delayMsg" debounce="500"></p>
  <span>delayMsg:{{delayMsg}}</span>
 
 </div>
 
 <script>
  var vm = new Vue({
   el:"#app",
   data:{
    checked:false,
    names:[],
    picked:"",
    selected:"",
    multiSelected:"",
    options:[
     {text:"Kobe",value:"Bryant"},
     {text:"Stephen",value:"Curry"},
     {text:"Aaron",value:"Kong"}
    ],
    selectedPlayer:"",
    msg:"",
    age:"",
    delayMsg:""
   },
   methods:{
 
   }
  })
 </script>
</body>
</html>

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Several advantages of using vue:

1. Just pay attention to the data of the model layer Processing, there is no need to deal with complex view layer updates, vue will automatically update the view layer when the model changes;

2. Vue provides a series of small tools to help developers deal with problems in data binding, such as computed can provide The expansion of calculations also supports filters, sorting, etc.;

3. The code is concise and layered clearly. Data binding is done in html, while js only needs to process data and background interaction;

4. Provide custom component functions to further standardize the front-end architecture. It is currently not in use and will be studied in the future.

The above is my current experience of using Vue. I haven’t found any shortcomings yet, and it may not be too in-depth. Overall, the experience is very good!