Sohu Tech Products
Apr 7, 2021 · Frontend Development
Understanding Notion’s Block‑Based Editor Architecture and Operations
The article explains how Notion implements a block‑tree data model and a controlled contenteditable editor using React, detailing the data layer, operation (op) system, rendering components, selection handling, text styling, and copy‑paste mechanisms, all backed by transactional undo/redo logic.
Block ModelContentEditableEditor
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