Home Web Front-end Front-end Q&A Does vue have a colon?

Does vue have a colon?

Jan 05, 2023 pm 03:27 PM
vue

vue中是有冒号的;通过查看Vue的API文档时,我们会发现冒号“:”其实是“v-bind”的缩写,所以在使用上,一般的常量属性不用添加冒号,如果是会产生变化的值则要加上冒号。

Does vue have a colon?

本教程操作环境:Windows10系统、Vue 3版、Dell G3电脑。

vue有没有冒号?

有。

Vue中的冒号变量

在使用Vue中经常看到HTML中有些标签属性前面添加了“:”,有些没有。

查看Vue的API文档时我们会发现冒号“:”其实是v-bind的缩写。

Does vue have a colon?

所以在使用上,一般的常量属性我们不用添加冒号;如果是会产生变化的值则要加上冒号。

关于vue属性使用和不使用冒号的区别说明

相关介绍:

为什么vue组件的属性,有的需要加冒号“:”,有的不用?

加冒号的,说明后面的是一个变量或者表达式;没加冒号的后面就是对应的字符串字面量!

例子:

1

2

3

4

<el-radio-group v-model="handle">

                    <el-radio :label="true">打开</el-radio>

                    <el-radio :label="false">关闭</el-radio>

</el-radio-group>

Copy after login

输出:true 或 false 值是Boolean类型

1

2

3

4

5

-----

<el-radio-group v-model="handle">

                    <el-radio label="true">打开</el-radio>

                    <el-radio label="false">关闭</el-radio>

</el-radio-group>

Copy after login

输出:”true" 或 “false”  值是String类型

参考:

https://cn.vuejs.org/v2/api/#v-bind

https://cn.vuejs.org/v2/guide/class-and-style.html

推荐学习:《vue视频教程

The above is the detailed content of Does vue have a colon?. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
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

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

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

How to use bootstrap in vue 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 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 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.

How to reference js file with vue.js 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 &lt;script&gt; tag;; dynamic import using the mounted() lifecycle hook; and importing through the Vuex state management library.

What does vue multi-page development mean? 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 return to previous page by vue 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 &lt;router-link to=&quot;/&quot; component window.history.back(), and the method selection depends on the scene.

How to use vue traversal 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 a tag to vue How to jump a tag to vue Apr 08, 2025 am 09:24 AM

The methods to implement the jump of a tag in Vue include: using the a tag in the HTML template to specify the href attribute. Use the router-link component of Vue routing. Use this.$router.push() method in JavaScript. Parameters can be passed through the query parameter and routes are configured in the router options for dynamic jumps.

See all articles