How to Pass HTML Tags in Props

When working with JavaScript, you may come across situations where you need to pass HTML tags as props to components. This can be particularly useful when you want to dynamically render HTML content based on certain conditions or user input. In this blog post, we will explore different approaches to achieve this.

Approach 1: Using React’s dangerouslySetInnerHTML

React provides a prop called dangerouslySetInnerHTML which allows you to pass HTML content as a string and have it rendered as actual HTML. This approach should be used with caution as it can potentially expose your application to cross-site scripting (XSS) attacks if not properly sanitized.

Here’s an example of how you can use dangerouslySetInnerHTML to pass HTML tags in props:

import React from 'react';

const MyComponent = ({ htmlContent }) => {
  return (
    

  );
};

export default MyComponent;
  

To use this component, you can pass the HTML content as a prop:

import React from 'react';
import MyComponent from './MyComponent';

const App = () => {
  const htmlContent = 'This is a bold text.
';

  return (
    

      
My App
      
    
  );
};

export default App;
  

Approach 2: Using a Custom Renderer

If you want more control over how the HTML tags are rendered, you can create a custom renderer function. This approach allows you to sanitize the HTML content and apply any necessary transformations before rendering it.

Here’s an example of how you can create a custom renderer:

import React from 'react';

const renderHTML = (htmlContent) => {
  // Sanitize and transform the HTML content as needed
  const sanitizedHTML = sanitizeHTML(htmlContent);
  
  return (
    

  );
};

const MyComponent = ({ htmlContent }) => {
  return renderHTML(htmlContent);
};

export default MyComponent;
  

In this example, the renderHTML function takes the HTML content, sanitizes it using a hypothetical sanitizeHTML function, and then renders it using dangerouslySetInnerHTML.

Conclusion

Passing HTML tags in props can be achieved using React’s dangerouslySetInnerHTML prop or by creating a custom renderer function. However, it’s important to exercise caution and properly sanitize the HTML content to prevent security vulnerabilities.

Remember to use these approaches judiciously and consider the potential risks associated with rendering user-generated HTML content.