11) Typescript Reducer and Context
Reducer Typing in TypeScriptA reducer is a function that updates state based on actions.In TypeScript, we explicitly type: State, Action, Reducer functionDefine State Type type CounterState = { coun
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4) Typescript Interfaces and Types
Interfaces in TypeScriptAn interface defines the structure of an object. It is commonly used in,i) React Propsii) API response modelsiii) Class contractsiv) Reusable object structures interface User {
3) Typescript Functions
Function Typing in TypeScripti) Basic Function Typing function add(a: number, b: number): number { return a + b; } console.log(add(10, 20)); ii) Arrow Function Typing const multiply = (a: number,
42) SSR, CSR in React
Client-Side Rendering (CSR)In CSR: The browser downloads JavaScript first, and JavaScript generates the HTML UI in the browser. The server mainly sends: Minimal HTML CSS JavaScript bundle. Browser Req
15) Environment Variables & Config
Configuration in Node.js is one of those areas that looks simple at first (“just use environment variables”), but becomes critical as your app scales, moves across environments, and handles secrets se
14) Node Path Module
IntroductionThe path module in Node.js is a core utility module used to work with file and directory paths safely and consistently across different operating systems (Windows, Linux, macOS).👉 It help
13) Node OS Module
IntroductionThe os module in Node.js is a core module that provides information about the operating system (OS) your Node application is running on. It helps you write programs that are aware of syste
23) Security Basics in Javascript
JavaScript security basics are about protecting your application and users from common client-side attacks. Since JS runs in the browser, it’s exposed—so you must assume attackers can see and manipula
21) Debouncing and Throttling
Debouncing and Throttling are performance optimization techniques in JavaScript used to control how often a function executes—especially for high-frequency events like typing, scrolling, or resizing.D