search
HomeWeb Front-endJS TutorialDetailed explanation of examples of vue.js table component development

前言

组件(Component)是 Vue.js 最强大的功能之一。组件可以扩展 HTML 元素,封装可重用的代码。在较高层面上,组件是自定义元素,Vue.js 的编译器为它添加特殊功能。在有些情况下,组件也可以是原生 HTML 元素的形式,以 is 特性扩展。

组件开发的基础

组件可以扩展 HTML 元素,封装可重用的代码。我理解为功能模块的模板吧。

对于vue来说,组件是这个样子的,我们在html里面写

<div id="example">
 <my-component></my-component>
</div>edx

然后就出来

<div id="example">
<div>A custom component!</div>
</div>

代码 

A custom component!
我们只要写一遍就行了 。

所以我们需要定义它,把 my-component的标签和代码关联起来,所以我们要定义它

// 定义
var MyComponent = Vue.extend({
 template: &#39;<div>A custom component!</div>&#39;
})

定义了之后,我们要让页面能够渲染它,让Vue知道它的存在

// 注册
 Vue.component(&#39;my-component&#39;, MyComponent)
// 创建根实例
new Vue({
 el: &#39;#example&#39;
})

以上,是官网一个非常简单的例子 ,其实觉得和一个function的封装也差不多,定义,引入,然后执行。

然后一个组件可以引用别的组件的东西,有点像函数的互相调用啊。

var Child = Vue.extend({ /* ... */ })
var Parent = Vue.extend({
 template: &#39;...&#39;,
 components: {
 // <my-component> 只能用在父组件模板内
 &#39;my-component&#39;: Child
 }
})

一个表格组件的实例

这是官网的例子

Detailed explanation of examples of vue.js table component development

这个是一个可以排序的表格的例子。我们从头开始来制作一个可以排序的表格。

基本结构

首先分成两个部分,一个是搜索框,一个是表格本身,我们可以得到这样的结构

<div id="demo">
 <form id="search">
 Search <input name="query">
 </form>
<table>
 <thead>
 <tr>
 <th>name</th>
 <th>power</th>
 </tr>
 </thead>
 <tbody>
 <tr>
 <td>Jack Chan</td>
 <td>7000</td>
 </tr>
 </tbody>
</table>
</div>

显示效果

Detailed explanation of examples of vue.js table component development

加上基本的css

body {
 font-family: Helvetica Neue, Arial, sans-serif;
 font-size: 14px;
 color: #444;
}
 
table {
 border: 2px solid #42b983;
 border-radius: 3px;
 background-color: #fff;
}
 
th {
 background-color: #42b983;
 color: rgba(255,255,255,0.66);
 cursor: pointer;
 -webkit-user-select: none;
 -moz-user-select: none;
 -user-select: none;
}
 
td {
 background-color: #f9f9f9;
}
 
th, td {
 min-width: 120px;
 padding: 10px 20px;
}
 
#search {
 margin-bottom: 10px;
}

显示效果如下,

Detailed explanation of examples of vue.js table component development

提取组件

我们是想要让表格成为单独的组件,所以我们定义一个叫做 demo-grid的组件,用它来生成表格

<div id="demo">
 <form id="search">
 Search <input name="query" >
 </form>
 <demo-grid>
 </demo-grid>
</div>

代码里面关于表格的那部分给放到组件模板里面,我们定义组件。也就是用script来定义,

<script type="text/x-template" id="grid-template">
 <table>
 <thead>
 <tr>
  <th>name</th>
  <th>power</th>
 </tr>
 </thead>
 <tbody>
 <tr>
  <td>Jack Chan</td>
  <td>7000</td>
 </tr>
 </tbody>
 </table>
</script>

定义完了之后我们要在给Vue注册组件模块,然后进行Vue的渲染

Vue.component(&#39;demo-grid&#39;,{
template:"#grid-template",
});
 
var demo = new Vue({
el:&#39;#demo&#39;
})

然后最后的效果是一样的,这个时候并没有数据流。

组件数据流

我们要让表格知道表格的头部和表格的内容,也就是有一个gridColumns和gridData,这个数据最开始放在Vue的Data里面

// bootstrap the demo
var demo = new Vue({
el: &#39;#demo&#39;,
data: {
 gridColumns: [&#39;name&#39;, &#39;power&#39;],
 gridData: [
 { name: &#39;Chuck Norris&#39;, power: Infinity },
 { name: &#39;Bruce Lee&#39;, power: 9000 },
 { name: &#39;Jackie Chan&#39;, power: 7000 },
 { name: &#39;Jet Li&#39;, power: 8000 }
 ]
}
})

然后我们的组件也要接受这个数据,这里我们通过类似属性的形式给组件模板传入数据,

<demo-grid
  :data="gridData"
  :columns="gridColumns">
 </demo-grid>

然后我们在组件里面把相应的数据继承下来。

Vue.component(&#39;demo-grid&#39;,{
template:"#grid-template",
props: {
 data: Array,
 columns: Array
}
});

然后在模板里面替换掉

<script type="text/x-template" id="grid-template">
 <table>
 <thead>
 <tr>
  <th v-for="key in columns">{{key}}</th>
 </tr>
 </thead>
 <tbody>
 <tr v-for="entry in data">
  <td v-for="key in columns">{{entry[key]}}</td>
 </tr>
 </tbody>
 </table>
</script>

效果如下

Detailed explanation of examples of vue.js table component development

搜索功能增加

这个时候,我们想加入一个交互,也就是在搜索框增加关键词的时候,表格能够相应地变化。

首先我们要绑定搜索框的模型,也就是用searchQuery来绑定Input

<form id="search">
Search <input name="query" v-model="searchQuery">
</form>

在Vue里面增加data的初始化

var demo = new Vue({
el: &#39;#demo&#39;,
data: {
 searchQuery: &#39;&#39;,
 ...
})

同时,在组件模板里面也进行参数传入

<demo-grid
 :data="gridData"
 :columns="gridColumns"
 :filter-key="searchQuery">
</demo-grid>

组件的定义里面要继承模板的数据,也就是在模板里面是filter-key,注意要转化驼峰写法

Vue.component(&#39;demo-grid&#39;, {
 template: &#39;#grid-template&#39;,
 props: {
  data: Array,
  columns: Array,
  filterKey: String
 }
})

 

这个时候,我们的模板里面要过滤符合filterKey的数据,这里就用到了过滤器,vue提供了一个叫做filterBy的过滤器。|与过滤器,第一个为过滤器的名字,后面的是参数,| filterBy filterKey使用的就是filterBy的过滤器,参数是filterKey

<tr v-for="
 entry in data
 | filterBy filterKey>
  <td v-for="key in columns">
  {{entry[key]}}
  </td>
 </tr>

效果如下,我们这样就有了一个 能够过滤的表格

Detailed explanation of examples of vue.js table component development

表格排序

这部分逻辑比前面稍微复杂一点点。首先我们给表格加一个三角形,三角形有两种,一种是正序的,一种是逆序的,我们用span来作为三角形的容器

<th v-for="key in columns"
@click="sortBy(key)"
:class="{active: sortKey == key}">
{{key | capitalize}}
<span class="arrow">
</span>
</th>

三角形的样式有两种,上升的和下降的

.arrow {
 display: inline-block;
 vertical-align: middle;
 width: 0;
 height: 0;
 margin-left: 5px;
 opacity: 0.66;
}
 
.arrow.asc {
 border-left: 4px solid transparent;
 border-right: 4px solid transparent;
 border-bottom: 4px solid #fff;
}
 
.arrow.dsc {
 border-left: 4px solid transparent;
 border-right: 4px solid transparent;
 border-top: 4px solid #fff;
}

dsc的效果如下

Detailed explanation of examples of vue.js table component development

我们希望能够在不同的状态里面切换,所以我们选择在组件里面有数据存储排序的状态信息,用一个sortOrders的对象来存储排序信息 ,同时用一个sortKey来表示当前用来排序的键,我们设置为name

// register the grid component
Vue.component(&#39;demo-grid&#39;, {
template: &#39;#grid-template&#39;,
...
data: function () {
 var sortOrders = {}
 this.columns.forEach(function (key) {
 sortOrders[key] = 1
 })
 return {
 sortKey: &#39;name&#39;,
 sortOrders: sortOrders
 }
}

然后使用orderBy来排序

<tbody>
<tr v-for="
entry in data
| filterBy filterKey
| orderBy sortKey sortOrders[sortKey]">
 <td v-for="key in columns">
 {{entry[key]}}
 </td>
</tr>
</tbody>

Detailed explanation of examples of vue.js table component development

增加交互

我们希望能够通过点击表格头部来自动升序降序,所以添加鼠标事件,另外把span的样式和sortOrders[key]的值相关联,增加active的样式

<th v-for="key in columns"
  @click="sortBy(key)"
  :class="{active: sortKey == key}">
  {{key | capitalize}}
 <span class="arrow"
  :class="sortOrders[key] > 0 ? &#39;asc&#39; : &#39;dsc&#39;">
 </span>
 </th>

相关active的样式如下

th.active .arrow {
 opacity: 1;
}

对于鼠标事件,我们定义在表格内部,也就是把sortKey定位当前活跃的元素,同时改变sortOrders[key]的值

// register the grid component
Vue.component(&#39;demo-grid&#39;, {
template: &#39;#grid-template&#39;,
props: {
 ...
},
data: function () {
...
},
methods: {
 sortBy: function (key) {
 this.sortKey = key
 this.sortOrders[key] = this.sortOrders[key] * -1
 }
}
});

总结

以上就是关于vue.js组件开发的全部内容了,希望这篇文章对大家学习或者使用vue.js能有一定的帮助,如果有疑问大家可以留言交流。

更多Detailed explanation of examples of vue.js table component development相关文章请关注PHP中文网!


Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
From Websites to Apps: The Diverse Applications of JavaScriptFrom Websites to Apps: The Diverse Applications of JavaScriptApr 22, 2025 am 12:02 AM

JavaScript is widely used in websites, mobile applications, desktop applications and server-side programming. 1) In website development, JavaScript operates DOM together with HTML and CSS to achieve dynamic effects and supports frameworks such as jQuery and React. 2) Through ReactNative and Ionic, JavaScript is used to develop cross-platform mobile applications. 3) The Electron framework enables JavaScript to build desktop applications. 4) Node.js allows JavaScript to run on the server side and supports high concurrent requests.

Python vs. JavaScript: Use Cases and Applications ComparedPython vs. JavaScript: Use Cases and Applications ComparedApr 21, 2025 am 12:01 AM

Python is more suitable for data science and automation, while JavaScript is more suitable for front-end and full-stack development. 1. Python performs well in data science and machine learning, using libraries such as NumPy and Pandas for data processing and modeling. 2. Python is concise and efficient in automation and scripting. 3. JavaScript is indispensable in front-end development and is used to build dynamic web pages and single-page applications. 4. JavaScript plays a role in back-end development through Node.js and supports full-stack development.

The Role of C/C   in JavaScript Interpreters and CompilersThe Role of C/C in JavaScript Interpreters and CompilersApr 20, 2025 am 12:01 AM

C and C play a vital role in the JavaScript engine, mainly used to implement interpreters and JIT compilers. 1) C is used to parse JavaScript source code and generate an abstract syntax tree. 2) C is responsible for generating and executing bytecode. 3) C implements the JIT compiler, optimizes and compiles hot-spot code at runtime, and significantly improves the execution efficiency of JavaScript.

JavaScript in Action: Real-World Examples and ProjectsJavaScript in Action: Real-World Examples and ProjectsApr 19, 2025 am 12:13 AM

JavaScript's application in the real world includes front-end and back-end development. 1) Display front-end applications by building a TODO list application, involving DOM operations and event processing. 2) Build RESTfulAPI through Node.js and Express to demonstrate back-end applications.

JavaScript and the Web: Core Functionality and Use CasesJavaScript and the Web: Core Functionality and Use CasesApr 18, 2025 am 12:19 AM

The main uses of JavaScript in web development include client interaction, form verification and asynchronous communication. 1) Dynamic content update and user interaction through DOM operations; 2) Client verification is carried out before the user submits data to improve the user experience; 3) Refreshless communication with the server is achieved through AJAX technology.

Understanding the JavaScript Engine: Implementation DetailsUnderstanding the JavaScript Engine: Implementation DetailsApr 17, 2025 am 12:05 AM

Understanding how JavaScript engine works internally is important to developers because it helps write more efficient code and understand performance bottlenecks and optimization strategies. 1) The engine's workflow includes three stages: parsing, compiling and execution; 2) During the execution process, the engine will perform dynamic optimization, such as inline cache and hidden classes; 3) Best practices include avoiding global variables, optimizing loops, using const and lets, and avoiding excessive use of closures.

Python vs. JavaScript: The Learning Curve and Ease of UsePython vs. JavaScript: The Learning Curve and Ease of UseApr 16, 2025 am 12:12 AM

Python is more suitable for beginners, with a smooth learning curve and concise syntax; JavaScript is suitable for front-end development, with a steep learning curve and flexible syntax. 1. Python syntax is intuitive and suitable for data science and back-end development. 2. JavaScript is flexible and widely used in front-end and server-side programming.

Python vs. JavaScript: Community, Libraries, and ResourcesPython vs. JavaScript: Community, Libraries, and ResourcesApr 15, 2025 am 12:16 AM

Python and JavaScript have their own advantages and disadvantages in terms of community, libraries and resources. 1) The Python community is friendly and suitable for beginners, but the front-end development resources are not as rich as JavaScript. 2) Python is powerful in data science and machine learning libraries, while JavaScript is better in front-end development libraries and frameworks. 3) Both have rich learning resources, but Python is suitable for starting with official documents, while JavaScript is better with MDNWebDocs. The choice should be based on project needs and personal interests.

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

SecLists

SecLists

SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

WebStorm Mac version

WebStorm Mac version

Useful JavaScript development tools

Atom editor mac version download

Atom editor mac version download

The most popular open source editor

EditPlus Chinese cracked version

EditPlus Chinese cracked version

Small size, syntax highlighting, does not support code prompt function

DVWA

DVWA

Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software