I think it would be helpful to include a practical text-cleaning project in the JavaScript programming section.
Many developers and students work with AI-generated text from ChatGPT, Gemini, Claude, and other LLMs. A common issue is hidden Unicode characters (such as zero-width spaces), inconsistent line endings, and formatting problems that break copy-paste workflows.
A small example project demonstrating how to:
- Remove invisible Unicode characters
- Normalize line endings
- Trim extra whitespace
- Clean pasted text with JavaScript
would teach useful string manipulation and regular expression skills while solving a real-world problem.
I've built a free browser-based version of this idea at https://aicleanertext.com/, and I think similar educational examples would fit well within Khan Academy's JavaScript lessons. It would give learners a practical project they can build and extend while improving their understanding of text processing.
