MikroORM is a TypeScript ORM for Node.js that implements Data Mapper, Unit of Work, and Identity Map patterns to manage database interactions across MongoDB, MySQL, PostgreSQL, SQLite, and MariaDB. Developers use it to handle complex object-relational mapping with explicit control over when data is persisted, making it suitable for domain-driven design and applications requiring fine-grained entity management. It also supports vanilla JavaScript projects, providing flexibility beyond TypeScript-only environments.

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