Home Web Front-end Vue.js What is mix-in in vue.js

What is mix-in in vue.js

Nov 11, 2020 am 10:30 AM
vue.js

vue.js mix-in defines a part of reusable methods or calculated properties. The mix-in object can contain any component options. When a component uses the mix-in object, all the options of the mix-in object will be mixed into the component itself. options.

What is mix-in in vue.js

The operating environment of this tutorial: windows10 system, vue2.4.2, this article is applicable to all brands of computers.

【Recommended related articles: vue.js

Mixins (mixins) defines a part of reusable methods or calculations Attributes. Mixins can contain arbitrary component options. When a component uses a mixin object, all options of the mixin object will be mixed into the options of the component itself.

Let’s look at a simple example:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Vue 测试实例</title>
<script src="https://cdn.staticfile.org/vue/2.4.2/vue.min.js"></script>
</head>
<body>
<div id = "databinding"></div>
<script type = "text/javascript">
var vm = new Vue({
el: &#39;#databinding&#39;,
data: {
},
methods : {
},
});
// 定义一个混入对象
var myMixin = {
created: function () {
this.startmixin()
},
methods: {
startmixin: function () {
document.write("欢迎来到混入实例");
}
}
};
var Component = Vue.extend({
mixins: [myMixin]
})
var component = new Component();
</script>
</body>
</html>
Copy after login

Option merging:

When components and mixin objects contain options with the same name, these options will be merged with the appropriate way to mix.

For example, data objects will be recursively merged internally, and when there is a conflict with component data, component data will take precedence.

Note:

(1) You set a data attribute in the mixed object, which contains various attribute values. There is also a data attribute in the component, so the data of the mixed object and the component object Values ​​will be merged, and components with the same name have limited data;

(2) Hook functions with the same name will be called, and the hooks of mixed objects are called before the component's own hooks;

Global mixin

The format is:

Vue.mixin({ // 混入函数 })
Copy after login

Attention! Use with caution. Once you use a global mixin object, it will affect all Vue instances created later. When used appropriately, custom objects can be infused with processing logic.

Related free learning recommendations: JavaScript (video)

The above is the detailed content of What is mix-in in vue.js. 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

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

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)

Use vue-cropper to crop images in the vue project Use vue-cropper to crop images in the vue project Oct 31, 2022 pm 07:16 PM

How to crop images in vue project? The following article will introduce to you how to use vue-cropper to crop images. I hope it will be helpful to you!

Let's talk in depth about reactive() in vue3 Let's talk in depth about reactive() in vue3 Jan 06, 2023 pm 09:21 PM

Foreword: In the development of vue3, reactive provides a method to implement responsive data. This is a frequently used API in daily development. In this article, the author will explore its internal operating mechanism.

Practical combat: Develop a plug-in in vscode that supports vue files to jump to definitions Practical combat: Develop a plug-in in vscode that supports vue files to jump to definitions Nov 16, 2022 pm 08:43 PM

vscode itself supports Vue file components to jump to definitions, but the support is very weak. Under the configuration of vue-cli, we can write many flexible usages, which can improve our production efficiency. But it is these flexible writing methods that prevent the functions provided by vscode itself from supporting jumping to file definitions. In order to be compatible with these flexible writing methods and improve work efficiency, I wrote a vscode plug-in that supports Vue files to jump to definitions.

Detailed graphic explanation of how to integrate the Ace code editor in a Vue project Detailed graphic explanation of how to integrate the Ace code editor in a Vue project Apr 24, 2023 am 10:52 AM

Ace is an embeddable code editor written in JavaScript. It matches the functionality and performance of native editors like Sublime, Vim, and TextMate. It can be easily embedded into any web page and JavaScript application. Ace is maintained as the main editor for the Cloud9 IDE and is the successor to the Mozilla Skywriter (Bespin) project.

Explore how to write unit tests in Vue3 Explore how to write unit tests in Vue3 Apr 25, 2023 pm 07:41 PM

Vue.js has become a very popular framework in front-end development today. As Vue.js continues to evolve, unit testing is becoming more and more important. Today we’ll explore how to write unit tests in Vue.js 3 and provide some best practices and common problems and solutions.

A brief analysis of how to handle exceptions in Vue3 dynamic components A brief analysis of how to handle exceptions in Vue3 dynamic components Dec 02, 2022 pm 09:11 PM

How to handle exceptions in Vue3 dynamic components? The following article will talk about Vue3 dynamic component exception handling methods. I hope it will be helpful to everyone!

What is the difference between componentization and modularization in vue What is the difference between componentization and modularization in vue Dec 15, 2022 pm 12:54 PM

The difference between componentization and modularization: Modularization is divided from the perspective of code logic; it facilitates code layered development and ensures that the functions of each functional module are consistent. Componentization is planning from the perspective of UI interface; componentization of the front end facilitates the reuse of UI components.

In-depth discussion of how vite parses .env files In-depth discussion of how vite parses .env files Jan 24, 2023 am 05:30 AM

When using the Vue framework to develop front-end projects, we will deploy multiple environments when deploying. Often the interface domain names called by development, testing and online environments are different. How can we make the distinction? That is using environment variables and patterns.

See all articles