TypeORM
TypeORM is an Object-Relational Mapping (ORM) library for TypeScript and JavaScript that simplifies database interactions by allowing developers to work with databases using object-oriented programming concepts. It supports multiple database systems like MySQL, PostgreSQL, SQLite, and MongoDB, and provides features such as entity modeling, query building, and migrations. It integrates seamlessly with TypeScript, offering strong typing and decorator-based syntax for defining database schemas.
Developers should learn TypeORM when building applications with TypeScript or JavaScript that require complex database operations, as it reduces boilerplate code and improves maintainability by abstracting SQL queries. It is particularly useful for projects using Node.js frameworks like NestJS or Express, where consistent data modeling and type safety are critical, such as in enterprise applications, APIs, or full-stack web apps. Its support for migrations and relationships makes it ideal for evolving database schemas in agile development environments.