Top MERN Stack Interview Questions
MERN stack stands for MongoDB, Express, React and Node.js. MERN stack is one of the most popular framework for developing web and mobile applications. It provides database back-end while react is the client-side front-end web framework, express and node are middleware in MERN stack. The MERN stack enables fast development of applications that are easy to debug specially using JSON documents. In case you are considering MERN stack bootcamp to train for a progressing career then here are top MERN stack interview questions to consider and test your skill and knowledge on the MERN stack for cracking the technical interview with ease! Q.1How does React work? It creates a virtual DOM. When the condition changes in a component it initially runs a “diffing” algorithm, which identifies what has changed in the virtual DOM. The second step is reconciliation, where it updates the DOM with results of diff. Q.2What is props in React? Props are inputs to a React component. They ar