I want to start working with NestJs. But the first question comes into mind that what problem resolve NestJS. I know NestJs is framework and express is library when i search article to find the difference between Nest and Express the answer which met is
1=>Code Reusability
2=>Performance
etc.
But code reusability in express we can do.So i want to know from experts what exactly the difference between Nest and Express.
I search on google to find the difference between ExpressJs And NestJs but these points are not satisfy me. I want to learn from stack overflow experienced people tell and explain the difference.
2
Answers
Express is a minimalist web framework for Node.js, offering flexibility but requiring manual structuring for large projects. NestJS, built on top of Express, provides a structured and opinionated framework with built-in support for TypeScript, dependency injection, and modular architecture, promoting code scalability and maintainability. Unlike Express, NestJS encourages a more organized approach to development through its architectural patterns like MVC and its reliance on decorators. While both offer code reusability, NestJS streamlines development through its powerful features and conventions, making it a preferred choice for complex applications requiring scalability and maintainability.
Express.js and NestJS are both web frameworks for Node.js, but they differ in various aspects including their architectural styles, features, and conventions. Here’s a comparison between Express.js and NestJS:
Architectural Style:
Dependency Injection:
Decorators and Metadata:
Middleware:
Built-in Features:
Community and Ecosystem:
In summary, Express.js is a lightweight and flexible framework that offers simplicity and freedom in building web applications, while NestJS provides a structured and opinionated approach, leveraging TypeScript features and Angular-inspired concepts to build scalable and maintainable applications. The choice between Express.js and NestJS depends on factors such as project requirements, developer preferences, and familiarity with TypeScript and Angular concepts.