If your application stores any data (user profiles, content, comments, uploads, events, etc.), then you’re going to want a database that’s just as easy to work with as React, Express, and Node. ![]() Those functions, in turn, use MongoDB’s Node.js drivers, either via callbacks or using promises, to access and update data in your MongoDB database. Express.js has powerful models for URL routing (matching an incoming URL with a server function), and handling HTTP requests and responses.īy making XML HTTP Requests (XHRs) or GETs or POSTs from your React.js front end, you can connect to Express.js functions that power your application. Express.js bills itself as a “fast, unopinionated, minimalist web framework for Node.js,” and that is indeed exactly what it is. The next level down is the Express.js server-side framework, running inside a Node.js server. React’s strong suit is handling stateful, data-driven interfaces with minimal code and minimal pain, and it has all the bells and whistles you’d expect from a modern web framework: great support for forms, error handling, events, lists, and more. ![]() React lets you build up complex interfaces through simple components, connect them to data on your back-end server, and render them as HTML. The top tier of the MERN stack is React.js, the declarative JavaScript framework for creating dynamic client-side applications in HTML. The MERN architecture allows you to easily construct a three-tier architecture (front end, back end, database) entirely using JavaScript and JSON. Regardless of which variant you choose, ME(RVA)N is the ideal approach to working with JavaScript and JSON, all the way through. ![]() Express.js is a server-side web framework, and Node.js is the popular and powerful JavaScript server platform. Node(.js) - the premier JavaScript web serverĮxpress and Node make up the middle (application) tier.React(.js) - a client-side JavaScript framework.MERN stands for MongoDB, Express, React, Node, after the four key technologies that make up the stack.
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