vivo Internet Technology

Jun 3, 2026 · Frontend Development

How to Build a Stable @Document Mention Input with ProseMirror

This article walks through implementing an @document mention feature for a knowledge‑base Q&A input box, comparing a naïve contenteditable approach with a ProseMirror‑based solution, detailing schema design, plugin and suggestion handling, and the stability challenges of cursor, IME, and undo/redo.