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Learn how to effectively truncate DraftJs content while preserving styling and properties in your React application. Perfect for displaying short descriptions with rich formatting!
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This video is based on the question https://stackoverflow.com/q/55677978/ asked by the user 'Erdal SATIK' ( https://stackoverflow.com/u/1949660/ ) and on the answer https://stackoverflow.com/a/63121529/ provided by the user 'haukurmar' ( https://stackoverflow.com/u/3173034/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Trim DraftJs Content with All Styling and Properties in React

When working with DraftJs to manage rich text editors in your React applications, you may find yourself needing to display a short version of your content while preserving important formatting. For instance, let's say you want to show a brief description of content on listing pages and the full content on detail pages. The challenge lies in truncating not just the plain text, but also maintaining the styles, links, and entities associated with the text. In this guide, we’ll explore a practical solution for achieving this effectively.

Understanding the Problem

Imagine you have a React component that utilizes DraftJs to render text content. On listing pages, you might want to display only the first 400 characters of this content while retaining all the rich text formatting such as bold, italic, and even hyperlinks. Using a simple text truncation method won’t suffice, as it will strip away all these essential styles and leave you with a bland presentation.

Your Initial Attempt

You might have tried using a basic truncate method, but that only cuts off plain text. The solution lies in constructing a new ContentState based on the original blocks of text while limiting their character count and preserving the formatting.

A Step-by-Step Solution

Step 1: Convert Content to EditorState

To work with DraftJs content effectively, start by converting your stringified JSON content into EditorState. This will allow you to manipulate and traverse through the content blocks.

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Step 2: Truncate Content State

Next, implement a method to truncate the ContentState. This involves iterating through the blocks and determining how much text to include based on your character limit.

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Step 3: Convert Truncated Content to JSON

Finally, if you want to get the truncated content in a stringified JSON format, you can utilize a function to do that.

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Conclusion

With this approach, you'll be able to truncate DraftJs content down to a specified character count while keeping all the styling and formatting intact. This can significantly enhance the user experience on your application’s listing pages, providing a clean and appealing presentation of your content. Now, go ahead and implement this solution in your own project to make the most of DraftJs!