Sujit Verma

Coding my way through developer life 👨‍💻 | Exploring powerful AI tools 🤖 | Building digital income streams 💸 | Sharing what works 🚀

[Sujit Verma @Sujit460]

Don’t wait to be an expert.

Teach what you're learning.
Share tools you're using.
Post your journey.
Offer help to beginners.

That’s how you build trust — and trust = income 🧠
#CreatorEconomy #BuildInPublic

[Sujit Verma @Sujit460]

Use `fs.promises` in Node.js for clean, async/await file operations instead of callback hell. Avoid blocking the event loop with synchronous methods like `fs.readFileSync`.

#NodeJS #Backend

[Sujit Verma @Sujit460]

CommonJS (`require()`) loads synchronously at runtime. ES Modules (`import`) load statically at compile-time, enabling tree-shaking and better performance.

#NodeJS #WebDev

[Sujit Verma @Sujit460]

Node.js is a JavaScript runtime built on Chrome's V8 engine. It lets you run JS on the server using an event-driven, non-blocking I/O model to handle asynchronous tasks efficiently.

#NodeJS #WebDev

[Sujit Verma @Sujit460]

Access DOM nodes directly in React using `useRef` without triggering re-renders. Pass `const myRef = useRef(null);` to an element's `ref` attribute, then access it via `myRef.current`.

#ReactJS #WebDev

[Sujit Verma @Sujit460]

Prevent memory leaks in React by returning a cleanup function from `useEffect`. It runs before the component unmounts and before every re-run to clear subscriptions or timers.

#ReactJS #WebDev

[Sujit Verma @Sujit460]

Run code once on initial mount by passing an empty dependency array `[]` to `useEffect`. Perfect for fetching initial data: `useEffect(() => { fetch() }, [])`

#ReactJS #MERN

[Sujit Verma @Sujit460]

Keep React inputs controlled: bind value={text} and update state with onChange={e => setText(https://t.co/SAkrczVMqz.value)}. Now state is your single source of truth.

#ReactJS #MERN

[Sujit Verma @Sujit460]

@_beardo__ Exactly! Inline styles are best for truly dynamic values. CSS Modules handle media queries, :hover, animations, and reusable styles better. For dynamic styling, classes or CSS variables often give the best of both worlds.

[Sujit Verma @Sujit460]

Use CSS Modules `import styles from './App.module.css'` for scoped, reusable styles. Use inline styles `style={{ color: 'red' }}` only for dynamic, state-driven changes.

#ReactJS #WebDev

[Sujit Verma @Sujit460]

Render lists in React using `.map()`. Always add a unique `key={https://t.co/JS56oweer8}` to the root element. Avoid array index keys to prevent UI rendering bugs and performance issues.

#React #WebDev

[Sujit Verma @Sujit460]

React events use camelCase. Pass functions, don't invoke them: `onClick={handleClick}`. For inputs, capture value changes with `onChange={e => setValue(https://t.co/SAkrczVMqz.value)}`.

#ReactJS #WebDev

[Sujit Verma @Sujit460]

Use `useState` to track local component data in React. Updating state triggers an automatic re-render. Keep state local unless parent or sibling components need access.

#ReactJS #MERN

[Sujit Verma @Sujit460]

Make React components reusable using props. Pass dynamic data like `<Button variant="primary" />` to customize UI states without duplicating code. Keep your MERN UI modular.

#ReactJS #MERN

[Sujit Verma @Sujit460]

React functional components return JSX. Nest them by rendering `<Child />` inside `<Parent />`. Never declare a component inside another's body; it destroys state on every render.

#ReactJS #MERN

[Sujit Verma @Sujit460]

React's Virtual DOM is a lightweight copy of the real DOM. When state changes, React updates the Virtual DOM first, compares it (diffing), and syncs only the changed parts to the real DOM.

#ReactJS #WebDev

[Sujit Verma @Sujit460]

CSS Grid is a 2D layout engine. Use `display: grid;` and `grid-template-columns: repeat(3, 1fr);` to build responsive MERN dashboards without complex math.

#CSS #MERN

[Sujit Verma @Sujit460]

Use `display: flex` to align items in 1D. Control direction with `flex-direction`, distribute space with `justify-content`, and align along the cross axis using `align-items`.

#CSS #WebDev

[Sujit Verma @Sujit460]

Every HTML element is a box. Content is at the center, surrounded by padding (inside space), border, then margin (outside space). Use `box-sizing: border-box` to include padding in width.

#CSS #WebDev

[Sujit Verma @Sujit460]

Ditch div soup in React. Use `<header>`, `<nav>`, `<main>`, and `<footer>`. Semantic HTML improves SEO and screen reader accessibility out of the box.

#ReactJS #WebDev

[Sujit Verma @Sujit460]

Atomic commits save MERN projects. Keep React UI and Express API changes in separate, descriptive commits. Use 'git log --oneline' to track your history easily.

#Git #MERN