RKRupesh Kumarinrupeshgadariya.hashnode.dev·Jun 13 · 7 min readReactReact is a popular JavaScript library used to create modern websites and web applications. It helps developers build user interfaces using small, reusable components, making code easier to write and m00
RKRupesh Kumarinrupeshgadariya.hashnode.dev·May 9 · 5 min readMap and Set in JavaScriptMap In JavaScript, "map" typically refers to two different things: a data structure for storing key-value pairs or a method used to transform array The Map Object The Map is a collection of keyed data00
RKRupesh Kumarinrupeshgadariya.hashnode.dev·May 9 · 3 min readDestructuring in JavaScriptDestructuring is a programming syntax (most commonly in JavaScript) that makes it possible to unpack values from arrays or properties from objects directly into distinct variables. It breaks down comp00
RKRupesh Kumarinrupeshgadariya.hashnode.dev·May 9 · 4 min readPromisesIn JavaScript, a Promise is an object representing the eventual completion (or failure) of an asynchronous operation and its resulting value. They are the foundation of modern asynchronous programming00
RKRupesh Kumarinrupeshgadariya.hashnode.dev·May 8 · 5 min readJWTAuthentication is required to verify a user’s identity, protecting systems, data, and applications from unauthorized access. It secures personal information, prevents fraud, and ensures that only auth00
RKRupesh Kumarinrupeshgadariya.hashnode.dev·May 7 · 8 min readExpressExpress.js is a lightweight web framework for Node.js used to build servers and APIs quickly. It simplifies routing, middleware handling, and HTTP requests/responses. Express.js is widely used in back00
RKRupesh Kumarinrupeshgadariya.hashnode.dev·Apr 30 · 9 min readNode.js ApplicationWhat is node js Node.js is a JavaScript runtime environment that allows developers to run JavaScript outside the browser. It is built on Chrome’s V8 engine and is mainly used for server-side developme00
RKRupesh Kumarinrupeshgadariya.hashnode.dev·Apr 30 · 8 min readSynchronous vs Asynchronous JavaScriptJavaScript execution follows a single-threaded, synchronous model where code is processed within an Execution Context. This process is managed by a JavaScript engine (like Google's V8 Engine) through 00
RKRupesh Kumarinrupeshgadariya.hashnode.dev·Apr 30 · 6 min readCallbacks in JavaScriptIn JavaScript, a callback is a function passed as an argument to another function, which is then executed (or "called back") inside the outer function to complete a specific task. This is possible bec00
RKRupesh Kumarinrupeshgadariya.hashnode.dev·Apr 23 · 4 min readJavaScript ModulesModules JavaScript modules allow you to break down large programs into smaller, reusable, and independent files. Each module has its own private scope, preventing variable name conflicts and "namespac00
