Detailed explanation of nested loops, if judgments, and dynamic deletion of images and texts using vue.js-JS Tutorial-php.cn

Detailed explanation of nested loops, if judgments, and dynamic deletion of images and texts using vue.js

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Release： 2018-03-28 15:13:44

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This time I will bring you detailed graphic and text explanations of nested loops, if judgments, and dynamic deletions using vue.js. Notes on using vue.js's nested loops, if judgments, and dynamic deletions. What are they? Here are actual cases. Let’s take a look.

Vue.js is a very popular JavaScript MVVM library. It is built with data-driven and component-based ideas. Compared with Angular.js, Vue.js provides a simpler and easier-to-understand API

app.html

<!doctype html>
<html lang="zh-CN">
<head>
 <meta charset="UTF-8">
	<title>
	vuejs 嵌套循环、if判断
	</title>
	<style type="text/css">
		[v-cloak] { display: none }
	</style>
</head>
<body>
 <p id="app">
		
		<table>
			<tr>			
				<td >id</td>
				<td >姓名</td>
				<td >手机号</td>
				<td >城市</td>
				
				<td >通过审核</td>
				<td >我的学生</td>
				<td >操作</td>				
			</tr>
		 <tr v-for="(item,index) in list "> 
			 <td>{{item.id}}</td> 
			 <td>{{item.name}}</td>
			 <td>{{item.tel}}</td> 
				
			 <td>{{item.province}}_{{item.city}}</td> 
				<td v-if="item.status==1">是</td> 
				<td v-else-if="item.status==0">否</td> 
				<td >
					<span v-for="stu in item.stu ">
					{{stu.name}},
					</span>
				</td> 
				<td>
				 <button v-on:click="edit">修改</button>
				 <button v-on:click="del(index)">删除</button>
				</td> 
		 </tr>
		</table>
 </p>
</body>
<script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js" charset="utf-8"></script>
<script src="https://cdn.bootcss.com/vue/2.3.0/vue.min.js" charset="utf-8"></script>
<script type="text/javascript">
$(function() {
 new Vue({ 
		el: '#app', 
	 methods: { 
			del:function(index){
				this.list.splice(index,1);
			},
			edit: function () {
				alert('修改')
			},
		},
	 data: {
			"list":[{
				"id":"139",
				"name":"王五",
				"tel":"13681829898",
				"status":"1",
				"province":"省",
				"city":"市",
				"sex":"1",
				"stu":[{
					"id":"200",
					"name":"学生1",
					"tel":"13681829898",
				},{
					"id":"201",
					"name":"学生2",
					"tel":"13681829898",
				}],
			},
			{
				"id":"138",
				"name":"麻子",
				"tel":"13681829898",
				"status":"0",
				"province":"省",
				"city":"市",
				"sex":"0",
				"stu":[{
					"id":"300",
					"name":"学生31",
					"tel":"13681829898",
				},{
					"id":"301",
					"name":"学生32",
					"tel":"13681829898",
				}],
			},
			{
				"id":"137",
				"name":"丽丽",
				"tel":"15152882891",
				"status":"0",
				"province":"省",
				"city":"市",
				"sex":"1",
				"stu":[{
					"id":"400",
					"name":"学生41",
					"tel":"13681829898",
				},{
					"id":"401",
					"name":"学生42",
					"tel":"13681829898",
				}],
			},
			{
				"id":"136",
				"name":"娜娜",
				"tel":"15152882891",
				"status":"0",
				"province":"省",
				"city":"市",
				"sex":"0",
				"stu":[{
					"id":"500",
					"name":"学生51",
					"tel":"13681829898",
				},{
					"id":"501",
					"name":"学生52",
					"tel":"13681829898",
				}],
			}]
	 }
	})
})
</script>
</html>

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The difference between vue1.0 and vue2.0 loop index usage

如果是vue1.0这样写：
<ol>
   <li v-for="todo in todos" @click="delete($index)">
     {{todo.label}}
   </li>
</ol>
然后：
methods:{
 
 delete:function(index){
  this.todos.splice(index,1);
 }
}
如果是vue2.0这样写：
<ol>
    <li v-for="(todo,index) in todos" @click="delete(index)">
     {{todo.label}}
    </li> 
</ol>
然后
methods:{
 
 delete:function(index){
  this.todos.splice(index,1);
 }
}

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I believe you have mastered the method after reading the case in this article, more Please pay attention to other related articles on the php Chinese website!