ProseMirror
ProseMirror is a JavaScript library for building rich-text editors on the web, designed to handle structured content like documents with headings, lists, and tables. It provides a schema-based model for content, a virtual DOM for efficient rendering, and a plugin system for extensibility, enabling developers to create complex, collaborative editing experiences similar to Google Docs or Notion.
Developers should learn ProseMirror when building applications that require sophisticated text editing features, such as content management systems, collaborative tools, or note-taking apps, as it offers fine-grained control over document structure and real-time collaboration. It is particularly useful for projects needing custom formatting, complex document schemas, or integration with modern web frameworks like React or Vue.