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Testing in NodeJS: Unit and Integration testing, and Test-Driven Development (TDD)

Unit testing, integration testing, and test-driven development (TDD) are crucial practices for ensuring the reliability and maintainability of Node.js applications. Let’s explore each concept and understand how to implement them in a Node.js project. Unit Testing Definition: Unit testing involves testing individual units or components of an application to ensure they work as expected in […]

Aggregation Framework in MongoDB

How Devs aggregate data in SQL In SQL, the `GROUP BY` and `SELECT` statements are used together to aggregate data based on certain criteria. The `GROUP BY` clause groups rows that have the same values in specified columns into summary rows, and the `SELECT` statement is then used to retrieve the aggregated results. Here’s a […]