What is the usage of v-for in vue

Usage: 1. Use "v-for="(item,i) in list"" to loop through ordinary arrays; 2. Use "v-for="(user,i) in list"" to loop through arrays Object; 3. Use "v-for="(val,key,i) in user"" to loop the object.

The operating environment of this article: Windows 10 system, Vue version 2.9.6, DELL G3 computer.

What is the usage of v-for in vue

Several application methods of v-for:

Method 1: v-for loops ordinary arrays

//土蛋方法：
<p>{{list[0]}}</p>
<p>{{list[1]}}</p>
<p>{{list[2]}}</p>
<p>{{list[3]}}</p>
<p>{{list[4]}}</p>

//v-for方法：
<p v-for="(item,i) in list">{{i}},{{item}}</p>

//数组数据部分：
data:{
    list:[1,2,3,4,5,6]
},

Method 2: v-for loop object array

//v-for用法：
<p v-for="(user,i) in list">{{user.id}},{{user.name}},{{i}}</p>

//数组数据部分:
list:[
    {id:1,name:"zs1"},
    {id:2,name:"zs2"},
    {id:3,name:"zs3"},
    {id:4,name:"zs4"},
]

Method 3: v-for loop object

Note: When traversing the key-value pairs on the object, in addition to the val key, there is an index value in the third position

//v-for方法
<p v-for="(val,key,i) in user">{{val}},{{key}}</p>


//对象部分：
user：{
    id:1,
    name:"巧克力"
    gender:"萌妹"
}

Method 4: v-for iterates the array

//in后面我们放过 普通数组 对象数组 对象 还可以放数字
//注意：如果使用 v-for 迭代数字的话，前面的count值从1开始
<p v-for="count in 10">这是第{{count}}次循环</p>

[Related recommendations: "vue.js tutorial"]

The above is the detailed content of What is the usage of v-for in vue. For more information, please follow other related articles on the PHP Chinese website!