What is an ORM in Node.js and how does it work?

What is an ORM in Node.js and how does it work?

An ORM, or Object-Relational Mapping, is a programming technique used to convert data between incompatible type systems in Node.js. It allows developers to interact with databases using JavaScript objects instead of SQL queries.

Can you give me an example of how to use an ORM in a Node.js application?

Sure! For example, using Sequelize, you can define a model like this: const User = sequelize.define('User', { name: { type: Sequelize.STRING }, age: { type: Sequelize.INTEGER } }); Then, you can create a new user with User.create({ name: 'John', age: 30 });.

What are the benefits of using an ORM?

The benefits include easier database interactions, improved code readability, and the ability to switch databases with minimal changes to your code.

Are there any downsides to using an ORM?

Yes, some downsides include potential performance issues for complex queries and a learning curve for understanding the ORM's abstraction.