Isomorphic JavaScript
Isomorphic JavaScript is a development approach where JavaScript code runs both on the client-side (in the browser) and server-side (on a Node.js server), sharing the same codebase. It enables rendering web applications on the server for initial page loads, then handing off to the client for subsequent interactions, improving performance and SEO. This technique is often used with frameworks like React, Vue, or Angular to create universal applications.
Developers should use isomorphic JavaScript to build fast, SEO-friendly web applications that provide better user experiences by reducing initial load times and ensuring content is crawlable by search engines. It's particularly valuable for content-heavy sites, e-commerce platforms, and applications where performance and accessibility are critical, as it avoids the pitfalls of client-side-only rendering like blank pages during loading.