Jsdom In Nodejs How Do I Get Back The Manipulated Html

Jsdom in Node.js is a powerful tool for manipulating HTML and the Document Object Model (DOM) in your server-side JavaScript applications. If you've ever made changes to HTML elements using Javascript on the client side and wondered how to do the same on the server side, Jsdom is here to save the day. In this article, we'll walk through how you can use Jsdom in Node.js to get back the manipulated HTML effortlessly.

To start with, you need to install Jsdom in your Node.js project. You can do this easily using npm, the Node.js package manager. Simply run the following command in your terminal:

npm install jsdom

Once Jsdom is installed, you can require it in your Node.js file like this:

const { JSDOM } = require('jsdom');

Now, let's say you have a piece of HTML content that you want to manipulate. You can create a virtual DOM using Jsdom like this:

const { document } = (new JSDOM('<p>Hello, Jsdom!</p>')).window;

In the code above, we create a JSDOM object with the HTML content '

Hello, Jsdom!

'. The `document` variable now contains a virtual DOM that you can manipulate.

Next, you can manipulate the virtual DOM as needed. For example, let's say you want to change the text inside the `

` element to 'Hello, World!'. You can do this using standard DOM manipulation methods:

document.querySelector('p').textContent = 'Hello, World!';

After making your desired changes to the virtual DOM, you may want to get back the manipulated HTML. Jsdom makes it easy to serialize the virtual DOM back to HTML. You can do this by accessing the `document.documentElement` property and calling the `outerHTML` method:

const manipulatedHtml = document.documentElement.outerHTML;
console.log(manipulatedHtml);

The `manipulatedHtml` variable now contains the manipulated HTML content. You can use this content for various purposes, such as saving it to a file, sending it as a response in an API, or any other use case in your Node.js application.

By leveraging Jsdom in Node.js, you can seamlessly manipulate HTML and the DOM in your server-side JavaScript applications. Whether you need to scrape web content, test your code, or generate HTML dynamically, Jsdom empowers you to work with HTML in a familiar and efficient way. Experiment with Jsdom in your projects and explore the possibilities of server-side HTML manipulation. Happy coding!