Vue Highlight.js

💡 Version 4 with Highlight.js v10 support is under development. See version-4 branch.

📜 Highlight.js syntax highlighter component for Vue.

⚙️ Installation

Via npm:

npm install highlight.js vue-highlight.js

Or Yarn:

yarn add highlight.js vue-highlight.js

For TypeScript, Please install @types/highlight.js.

npm install --save-dev @types/highlight.js
# or
yarn add --dev @types/highlight.js

🎬 Demo

Go to https://gluons.github.io/vue-highlight.js

🛂 Usage

Main file:

There are 2 ways to import Highlight.js languages.

1. Import only languages that you want.

   import Vue from 'vue';
   import VueHighlightJS from 'vue-highlight.js';
   
   // Highlight.js languages (Only required languages)
   import css from 'highlight.js/lib/languages/css';
   import javascript from 'highlight.js/lib/languages/javascript';
   import vue from 'vue-highlight.js/lib/languages/vue';
   
   /*
   * Import Highlight.js theme
   * Find more: https://highlightjs.org/static/demo/
   */
   import 'highlight.js/styles/default.css';
   
   import App from './App';
   
   /*
   * Use Vue Highlight.js
   */
   Vue.use(VueHighlightJS, {
   	// Register only languages that you want
   	languages: {
   		css,
   		javascript,
   		vue
   	}
   });
   
   new Vue({
   	el: '#app',
   	render: h => h(App)
   });

2. Import all languages.

   import Vue from 'vue';
   import VueHighlightJS from 'vue-highlight.js';
   
   // Highlight.js languages (All languages)
   import 'vue-highlight.js/lib/allLanguages'
   
   /*
   * Import Highlight.js theme
   * Find more: https://highlightjs.org/static/demo/
   */
   import 'highlight.js/styles/default.css';
   
   import App from './App';
   
   /*
   * Use Vue Highlight.js
   */
   Vue.use(VueHighlightJS);
   
   new Vue({
   	el: '#app',
   	render: h => h(App)
   });

Vue file:

<template>
	<div id="app">
		<!-- Code Block -->
		<highlight-code lang="javascript">
			let str = 'Hello, World!';
			console.log(str);
		</highlight-code>

		<!-- Inline Code Block -->
		<highlight-code lang="javascript" inline>alert('Hello, World!');</highlight-code>
	</div>
</template>

<script>
// JavaScript...
</script>

<style>
/* StyleSheet... */
</style>

⛕ Plugin Options

languages

Type: { [name: string]: HLJSLang }
Default: {}

Highlight.js languages.
Add the languages that you want to use here.

name is the name of language to register with Highlight.js' registerLanguage(name, language) API.

See https://github.com/isagalaev/highlight.js#commonjs about importing each language from highlight.js.

📚 API

<highlight-code>

Highlight.js code block.

🔰 Slots

Static code content.

🔰 Properties

lang

Type: String

Highlight.js language.

inline

Type: Boolean
Default: false

Enable inline code block when set it to true.

code

Type: String

Code content in code block.

You can use this prop if you want to bind code content to your data source.
It's useful for dynamic code content.

Component will ignore slot static content if you use this.

auto

Type: Boolean

Enable auto detecting code language.

Code will be detected by highlight.js' highlightAuto function.

auto will work well when you import all Highlight.js languages.

Component will ignore lang prop if you use auto.

❓ FAQ

• How to write HTML code inside slot?

  You have to escape all HTML tags before add it into slot.
  If you didn't do that, browser will interpret those tags as HTML element.
  ℹ️ See isagalaev/highlight.js#866

  If you use code property instead of slot, you don't need to worry about this.
  Vue Highlight.js will automatically escape it for you.

• Why did I get SyntaxError: Unterminated template literal error when used <script></script> in code property?

  If you add </script> at anywhere inside script tag, although it's a string inside quotes, it will always close the script tag.
  ℹ️ See "Unterminated template literal" syntax error when literal contains script tag