How Vue3 parses markdown and implements code highlighting

Vue implements the blog front-end and needs to implement markdown parsing. If there is code, it needs to implement code highlighting.
Vue has many markdown parsing libraries, such as markdown-it, vue-markdown-loader, marked, vue-markdown, etc. These libraries are all very similar. Marked is used here, and highlight.js is used as the code highlighting library.

The specific implementation steps are as follows:

1. Install dependent libraries

Open the command window under the vue project and enter the following command

npm install marked -save // marked 用于将markdown转换成html npm install highlight.js -save //用于代码高亮显示

The command is executed You can then see the installed version number in the console or package.json file

2. Introduce highlight.js and styles into the main.js file and create a Customized global directive

import hljs from 'highlight.js'; import 'highlight.js/styles/atom-one-dark.css' //样式 //创建v-highlight全局指令 Vue.directive('highlight',function (el) { let blocks = el.querySelectorAll('pre code'); blocks.forEach((block)=>{ hljs.highlightBlock(block) }) })

This way you can use v-highlight to reference the code highlighting method in the vue component.

3. Apply marked parsing and code highlighting in Vue components

The code examples are as follows:

4. Display effect

markdown parsing and Code highlighting effect

The style referenced in the example isimport 'highlight.js/styles/atom-one-dark.css'
Actually highlight.js/styles provides many styles, which can be selected according to your own preferences.

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