I am using reactjs to render post. In my post, I have some tag <code></code>
. So I want to display code
for everyone easy to see.
I render my post like this with reactjs.
<div className="post-body" dangerouslySetInnerHTML={{
__html: this.state.post.content.rendered
}} />
I installed code-prettify from this.
https://www.npmjs.com/package/code-prettify
So how can I use pretty-code
?
Here is my content render json:
"content": {
"rendered": "<p>In blogger\/blogspot you can you the conditional tags to make custom for posts, pages, archive page, label and search page, even a specific post.<\/p>\n<h2>I.List of conditional tags you can use in your Blogger theme.<\/h2>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\n<li>For Index page (Homepage, label pages and archive pages)\n<div class=\"toolbar\"><code class=\"prettyprint\"><b:if cond='data:blog.pageType == \"index\"'><br \/>\n<\/b:if><\/code><\/div>\n<\/li>\n<li>\n<div class=\"toolbar\">For posts<\/div>\n<div class=\"toolbar\"><code class=\"prettyprint\"><b:if cond='data:blog.pageType == \"index\"'><br \/>\n<\/b:if><\/code><\/div>\n<\/li>\n<li>\n<div class=\"toolbar\">For pages<\/div>\n<div class=\"toolbar\"><code class=\"prettyprint\"><b:if cond='data:blog.pageType == \"static_page\"'><br \/>\n<\/b:if><\/code><\/div>\n<\/li>\n<li>\n<div class=\"toolbar\">For archive pages<\/div>\n<div class=\"toolbar\"><code class=\"prettyprint\"><b:if cond='data:blog.pageType == \"archive\"'><br \/>\n<\/b:if><\/code><\/div>\n<\/li>\n<li>\n<div class=\"toolbar\">For homepage<\/div>\n<div class=\"toolbar\"><code class=\"prettyprint\"><b:if cond='data:blog.url == data:blog.homepageUrl'><br \/>\n<\/b:if><\/code><\/div>\n<\/li>\n<li>\n<div class=\"toolbar\">For specific url<\/div>\n<div class=\"toolbar\"><code class=\"prettyprint\"><b:if cond='data:blog.url == \"PUT_URL_HERE\"'><br \/>\n<\/b:if><\/code><\/div>\n<\/li>\n<li>\n<div class=\"toolbar\">For search page<\/div>\n<div class=\"toolbar\"><code class=\"prettyprint\"><b:if cond='data:blog.searchLabel'><br \/>\n<\/b:if><\/code><\/div>\n<\/li>\n<li>\n<div class=\"toolbar\">For error page<\/div>\n<div class=\"toolbar\"><code class=\"prettyprint\"><b:if cond='data:blog.pageType == \"error_page\"'><br \/>\n<\/b:if><\/code><\/div>\n<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<h2>II. How to use?<\/h2>\n<p>You can use like this:<br \/>\nExample: In home page, I want to make a different style with other pages\/posts. I will use css inside conditional tags.<br \/>\n<code class=\"prettyprint\"><br \/>\n<b:if cond='data:blog.url == data:blog.homepageUrl'><br \/>\n<style><br \/>\nbody {font-size:20px; background:#f1f1f1}<br \/>\n<\/style><br \/>\n<script><br \/>\n\/\/<![CDATA[<br \/>\n$('body').addClass('homepage')<br \/>\n\/\/]]><br \/>\n<\/script><br \/>\n<\/b:if><br \/>\n<\/code><\/p>\n<p>You also can use else if not homepage.<\/p>\n<p><code class=\"prettyprint\"><br \/>\n<b:if cond='data:blog.url == data:blog.homepageUrl'><br \/>\n<style><br \/>\nbody {font-size:20px; background:#f1f1f1}<br \/>\n<\/style><br \/>\n<script><br \/>\n\/\/<![CDATA[<br \/>\n$('body').addClass('homepage')<br \/>\n\/\/]]><br \/>\n<\/script><\/code><\/p>\n<p><b:else\/><br \/>\n<!– Code for other pages here –><br \/>\n<\/b:if><\/p>\n",
"protected": false
},
The docs are quite clear on how to use it, just include the script and add a prettyprint
class to the pre
tag
<pre class="prettyprint">
Here is a running example:
const codeFromServer = `<code> function add(n1,n2){ console.log(x + y); } const x = 8; const y = 10; add(x,y); </code> `; class App extends React.Component{ render(){ return( <pre className="prettyprint" dangerouslySetInnerHTML={{ __html: codeFromServer }}></pre> ); } } ReactDOM.render(<App/>, document.getElementById('root'));
<script src="https://cdn.rawgit.com/google/code-prettify/master/loader/run_prettify.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.6.3/umd/react.production.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.6.3/umd/react-dom.production.min.js"></script> <div id="root" />
As Sagiv bg mentioned there is a way to run it on demand, eg on page render like in the code snippet below. Also it is demonstrated how you can inject lib dynamically.
class CodePrettyComponent extends Component { static getHeadOrBody() { return document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]; } static codePrettify() { // Check if PR object already exists if (typeof PR !== 'undefined') { return; } // Inject if not CodePrettyComponent.getHeadOrBody().appendChild( Object.assign( document.createElement('script'), { type: 'text/javascript', async: true, src: 'https://cdn.rawgit.com/google/code-prettify/master/loader/run_prettify.js' } ) ); } componentDidMount() { // Injecting lib into document CodePrettyComponent.codePrettify(); // Waiting for lib to be loaded and invoke setTimeout(() => { PR.prettyPrint(); }, 1500); } render() { return ( <pre class = "prettyprint" > <code class = "language-groovy" > <!-- your code here --> </code> </pre> ); }; };
<script src="https://cdn.rawgit.com/google/code-prettify/master/loader/run_prettify.js"></script>
For rendering HTML in React use
html-to-react
. WithparseWithInstructions()
you can filter out potentially risky candidates.
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