Example code of tree-shaped dish implemented by vue
This article mainly introduces the tree menu implemented by vue. Friends who need it can refer to it
The following code introduces the tree menu function implemented by vue. The specific code is as follows:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>vue</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="animate.css" rel="external nofollow" >
<script src="vue.js"></script>
<style>
*{
color:#585858;
}
#app{
min-height: 650px;
}
#app li{
list-style-type:none;
}
#app a{
text-decoration:none;
}
#app button{
width:100%;
}
#app ul{
padding:10px;
}
#app span{
cursor:pointer;
}
#tree{
border: 1px solid #ccc;
min-height: 650px;
width: 50%;
margin:0;
padding-top: 10px;
background-color:#f2f2f2;
position: absolute;
top:0;
left:0;
}
#tree li {
display: block;
padding: 0;
margin: 0;
border: 0;
border-bottom: 1px solid #e5e5e5;
min-height: 32px;
line-height:32px;
}
</style>
</head>
<body>
<p id='app' @click='hideTree($event)'>
<button @click.stop="show = !show">点我</button>
<transition enter-active-class="animated fadeInLeft" leave-active-class="animated fadeOutLeft">
<item v-bind:tree='treeData' id='tree' v-if="show"></item>
</transition>
</p>
<template id='tree-template'>
<ul>
<li v-for='(v,i) in tree'>
<span v-if="isFolder(v)" @click="toggle(i)">{{ tree[i].open ? '-' : '+' }}</span>
<a data-id="v.id">{{v.city}}</a>
<item v-bind:tree='v.child' v-show="tree[i].open"></item>
</li>
</ul>
</template>
<script>
var data = [{"id":26,"pid":1,"city":"四川省"},{"id":30,"pid":1,"city":"云南省"},{"id":322,"pid":26,"city":"成都"},{"id":323,"pid":26,"city":"绵阳"},{"id":324,"pid":26,"city":"阿坝"},{"id":325,"pid":26,"city":"巴中"},{"id":326,"pid":26,"city":"达州"},{"id":327,"pid":26,"city":"德阳"},{"id":328,"pid":26,"city":"甘孜"},{"id":329,"pid":26,"city":"广安"},{"id":330,"pid":26,"city":"广元"},{"id":331,"pid":26,"city":"乐山"},{"id":332,"pid":26,"city":"凉山"},{"id":333,"pid":26,"city":"眉山"},{"id":334,"pid":26,"city":"南充"},{"id":335,"pid":26,"city":"内江"},{"id":336,"pid":26,"city":"攀枝花"},{"id":337,"pid":26,"city":"遂宁"},{"id":338,"pid":26,"city":"雅安"},{"id":339,"pid":26,"city":"宜宾"},{"id":340,"pid":26,"city":"资阳"},{"id":341,"pid":26,"city":"自贡"},{"id":342,"pid":26,"city":"泸州"},{"id":367,"pid":30,"city":"昆明"},{"id":378,"pid":30,"city":"曲靖"},{"id":3100,"pid":367,"city":"盘龙区"},{"id":3101,"pid":367,"city":"五华区"},{"id":3102,"pid":367,"city":"官渡区"},{"id":3103,"pid":367,"city":"西山区"},{"id":3104,"pid":367,"city":"东川区"},{"id":3105,"pid":367,"city":"安宁市"},{"id":3106,"pid":367,"city":"呈贡县"},{"id":3107,"pid":367,"city":"晋宁县"},{"id":3108,"pid":367,"city":"富民县"},{"id":3109,"pid":367,"city":"宜良县"},{"id":3110,"pid":367,"city":"嵩明县"},{"id":3111,"pid":367,"city":"石林县"},{"id":3112,"pid":367,"city":"禄劝"},{"id":3113,"pid":367,"city":"寻甸"},{"id":3189,"pid":378,"city":"麒麟区"},{"id":3190,"pid":378,"city":"宣威市"},{"id":3191,"pid":378,"city":"马龙县"},{"id":3192,"pid":378,"city":"陆良县"},{"id":3193,"pid":378,"city":"师宗县"},{"id":3194,"pid":378,"city":"罗平县"},{"id":3195,"pid":378,"city":"富源县"},{"id":3196,"pid":378,"city":"会泽县"},{"id":3197,"pid":378,"city":"沾益县"}];
var treeData = createTree({
idname:'id',
pidname:'pid',
rootid:1,
data:data
});
function createTree(arg){
var idname = arg.idname,
pidname = arg.pidname,
rootid = arg.rootid,
data = arg.data,
treeData = [];
var _createTree = function(id){
var ret = [];
var index = 0;
for(var i = 0; i < data.length; i++){
if(data[i][pidname] == id){
ret[index] = data[i];
ret[index].child = _createTree(data[i][idname]);
index++;
}
}
return ret;
}
var index = 0;
for(var i = 0; i < data.length; i++){
if(data[i][pidname] == rootid){
treeData[index] = data[i];
treeData[index].child = _createTree(data[i][idname]);
index++;
}
}
return treeData;
}
Vue.component('item', {
template: '#tree-template',
props: ['tree'],
data: function () {
return {}
},
methods: {
toggle: function (i) {
this.tree[i].open = !this.tree[i].open;
this.$set(this.tree, i, this.tree[i]);
},
isFolder: function (data) {
return data.child && data.child.length
},
},
})
var vm = new Vue({
el: '#app',
data: {
treeData: treeData,
show:false,
},
methods: {
hideTree:function(e){
if(e.target.id == 'app'){
console.log(137);
this.show = false;
}
}
},
created: function () {
function _addOpen(data) {
for (var i = 0; i < data.length; i++) {
data[i]['open'] = false;
if (data[i].child.length > 0) {
_addOpen(data[i].child);
}
}
}
_addOpen(this.treeData);
}
});
</script>
</body>
</html>The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.
Related articles:
Javascript natively encapsulates a function test example code with a fade-in and fade-out effect
Five common JavaScript functions
Detailed explanation of Build and Serve using Angular CLI
The above is the detailed content of Example code of tree-shaped dish implemented by vue. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
How to use bootstrap in vue
Apr 07, 2025 pm 11:33 PM
Using Bootstrap in Vue.js is divided into five steps: Install Bootstrap. Import Bootstrap in main.js. Use the Bootstrap component directly in the template. Optional: Custom style. Optional: Use plug-ins.
How to add functions to buttons for vue
Apr 08, 2025 am 08:51 AM
You can add a function to the Vue button by binding the button in the HTML template to a method. Define the method and write function logic in the Vue instance.
How to use watch in vue
Apr 07, 2025 pm 11:36 PM
The watch option in Vue.js allows developers to listen for changes in specific data. When the data changes, watch triggers a callback function to perform update views or other tasks. Its configuration options include immediate, which specifies whether to execute a callback immediately, and deep, which specifies whether to recursively listen to changes to objects or arrays.
What does vue multi-page development mean?
Apr 07, 2025 pm 11:57 PM
Vue multi-page development is a way to build applications using the Vue.js framework, where the application is divided into separate pages: Code Maintenance: Splitting the application into multiple pages can make the code easier to manage and maintain. Modularity: Each page can be used as a separate module for easy reuse and replacement. Simple routing: Navigation between pages can be managed through simple routing configuration. SEO Optimization: Each page has its own URL, which helps SEO.
How to reference js file with vue.js
Apr 07, 2025 pm 11:27 PM
There are three ways to refer to JS files in Vue.js: directly specify the path using the <script> tag;; dynamic import using the mounted() lifecycle hook; and importing through the Vuex state management library.
How to return to previous page by vue
Apr 07, 2025 pm 11:30 PM
Vue.js has four methods to return to the previous page: $router.go(-1)$router.back() uses <router-link to="/" component window.history.back(), and the method selection depends on the scene.
How to use vue traversal
Apr 07, 2025 pm 11:48 PM
There are three common methods for Vue.js to traverse arrays and objects: the v-for directive is used to traverse each element and render templates; the v-bind directive can be used with v-for to dynamically set attribute values for each element; and the .map method can convert array elements into new arrays.
How to jump to the div of vue
Apr 08, 2025 am 09:18 AM
There are two ways to jump div elements in Vue: use Vue Router and add router-link component. Add the @click event listener and call this.$router.push() method to jump.
