VUE3 basic tutorial: Use Vue.js plug-in to encapsulate panel components

Vue.js is a popular JavaScript framework that is widely used in the development of web applications. Vue.js is a progressive framework, meaning you can gradually add Vue.js to an existing web application instead of recreating the entire application.

This article will introduce how to use the Vue.js plug-in to encapsulate the panel component so that the component can be easily reused in multiple pages.

What is Vue.js plug-in?

Vue.js plug-in is a reusable functional unit that can extend the functionality of the Vue.js framework. Plugins can add properties, directives or components to Vue.js, or add functionality globally. Plugins can also provide functions and tools to keep code simple and reusable.

Creating a Vue.js plug-in

Before you start creating a Vue.js plug-in, you must first understand the structure of the panel component. Panel components usually consist of a body containing a header and content. To effectively encapsulate this component and allow users to easily customize the title and content, we will define a configurable options object to pass to the plugin.

Next, we can create the Vue.js plugin. In order to create a plug-in, we need to call the Vue.use() method on the global Vue object and pass the plug-in as a parameter, for example:

Vue.use(plugin)

The plugin here can be a JavaScript object containing the install method. The install method will be called by Vue.js and provides a Vue.js instance as the first parameter. Now, let's create a simple Vue.js plug-in to encapsulate the panel component:

const PanelPlugin = {
  install(Vue, options) {
    Vue.component('panel', {
      props: ['title'],
      template: `
        <div class="panel">
          <div class="panel-header">{{title}}</div>
          <div class="panel-body">
            <slot></slot>
          </div>
        </div>
      `
    })
  }
}

This plug-in defines an object containing the install method, which is called in Vue.js. The install method uses the Vue.component() method to define a panel component. The Vue.component() method requires two parameters:

• The name of the component
• An object containing props and template properties. The props property contains the list of parameters accepted by the component, and the template property The HTML template that defines the component.

Now, we can use the Vue.use() method to install the plugin:

Vue.use(PanelPlugin)

We can pass an options object to the Vue.use() method, which will Passed to the plugin's install method. In our panel component plugin, the options parameter is ignored, but you can use it to configure the plugin at installation time.

Using Panel Component

Now that we have successfully created a panel component plugin, we can use it to create a panel component with a custom title and content.

In a Vue.js application, you can use the panel component in a template like this:

<panel title="My Panel">
  <p>This is the content of the panel.</p>
</panel>

This will render a panel in the page, with "My Panel" as the title, And displays "This is the content of the panel." in the body. We can use the v-bind directive to dynamically set the title attribute:

<panel :title="panelTitle">
  <p>This is the content of the panel.</p>
</panel>

Now, we can set the value of the panelTitle attribute in the Vue.js instance as follows:

new Vue({
  el: '#app',
  data: {
    panelTitle: 'My Dynamic Panel'
  }
})

This will be done in A dynamic panel with the title "My Dynamic Panel" is rendered on the page.

By using Vue.js plugins and components, we can easily create reusable panel components and add them to any Vue.js application. Plugins provide functionality for custom directives, filters, configuration options, and global methods, so they are particularly useful when multiple components need to add similar functionality.

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