How does MERN differ from MEVN or PERN stack and when should it be preferred?

Compares MERN with other JavaScript-based full-stack options (MEVN = Vue, PERN = PostgreSQL) and asks when MERN is the best choice.

• MERN uses MongoDB, Express.js, React.js, and Node.js, enabling a pure-JS stack from front-end to back-end. • MEVN swaps React with Vue.js—offers reactive API binding and simplicity, suited for smaller teams. • PERN replaces MongoDB with PostgreSQL, offering relational data modeling and ACID compliance. Why choose MERN? • JSON data flows naturally between layers. • Broad adoption and community support for Mongo + React. • It handles dynamic, document-driven data scenarios better than relational stacks. Category: Full Stack Web Development Tags: mern-stack, mean-stack, pern-stack, full-stack, react, javascript, mongodb