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Server Hooks and Custom Hooks – Advanced Features in React

Server-Side Hooks and Custom Hooks in React Server-Side Hooks and Custom Hooks in React In this final blog, we’ll cover server-side hooks, such as useId , useDeferredValue , and useSyncExternalStore , and also discuss custom hooks. 1. useId What is it? useId is used to generate unique IDs for elements, especially for accessibility purposes, like labeling form inputs. Real-Life Example: Automatically generating unique IDs for form fields. import React, { useId } from 'react'; function Form() { const id = useId(); return ( <form> <label htmlFor={id}>Enter your name</label> <input id={id} type="text" /> </form> ); } 2. useDeferredValue What is it? useDeferredValue allows you to defer updates to a value until later, which can improve performance for non-urgent state updates. Real-Life Example: You can use this to delay the rendering of certain UI...

React Ref Hooks: Managing References and Layout Effects

Managing Refs and Layout in React Managing Refs and Layout in React In this blog, we’ll explore hooks that help manage direct DOM manipulations, access mutable values, and control layout-related logic in React. Let’s look at useRef , useImperativeHandle , and useLayoutEffect . 1. useRef What is it? useRef gives you a way to persist values across renders without triggering re-renders. Real-Life Example: You can use useRef to focus on an input field without causing a re-render. import React, { useRef } from 'react'; function FocusInput() { const inputRef = useRef(null); return ( <div> <input ref={inputRef} type="text" /> <button onClick={() => inputRef.current.focus()}>Focus Input</button> </div> ); } 2. useImperativeHandle What is it? useImperativeHandle allows you to modify the instance values that are accessible by parent components using ref ...

Additional React Hooks – Advanced State and Performance Optimizations

Advanced React Hooks: useReducer, useCallback, and useMemo Advanced React Hooks: useReducer, useCallback, and useMemo In this blog, we will explore advanced React hooks that allow you to handle complex state logic, optimize performance, and manage expensive calculations. 1. useReducer What is it? useReducer is similar to useState , but it’s better suited for complex state logic, like when there are multiple state transitions or actions. Real-Life Example: Imagine a simple counter with multiple actions: increment, decrement, and reset. import React, { useReducer } from 'react'; function reducer(state, action) { switch (action.type) { case 'increment': return { count: state.count + 1 }; case 'decrement': return { count: state.count - 1 }; case 'reset': return { count: 0 }; default: throw new Error(); } } function Counter() { const [state, dispatch] = useReducer(re...

React Hooks: Basic Hooks in React

React Hooks: A Complete Beginner's Guide React Hooks: A Complete Beginner's Guide React Hooks are a way to add functionality to functional components in React. Before hooks, we had to use class components to manage state or perform side effects. Hooks make it easier and cleaner to write React code. Let's dive into the basics! Basic Hooks 1. useState What is it? useState allows us to create state variables in functional components. Think of state as a "memory" for your component that allows it to "remember" information, like user inputs or the current score in a game. Real-Life Example: Imagine you're building a simple counter app. The number you see on the screen is the "state" of the app, and you can change it when you click the button. Code Example: import React, { useState } from 'react'; function Counter() { const [count, setCount] = useState(0); // count is the state, ...

How to Fix "ERESOLVE Unable to Resolve Dependency Tree" Error While Creating a React App

How to Fix Dependency Errors While Creating a React App If you're trying to set up a React app using npx create-react-app and encounter the following error: npm error code ERESOLVE npm error ERESOLVE unable to resolve dependency tree npm error Found: react@19.0.0 npm error Could not resolve dependency: npm error peer react@"^18.0.0" from @testing-library/react@13.4.0 Don't worry! This issue occurs due to dependency conflicts between react , react-dom , and other packages like @testing-library/react . Below are two simple ways to fix this issue. Step 1: Try Fixing It With npm Before switching to Yarn, you can resolve the issue by installing the missing or incompatible dependencies manually. Here's how: After running npx create-react-app my-app , if the error appears, navigate to your project folder: cd my-app Install the missing web-vitals dependency: npm install web-vitals Check for other dependency ...

Free Hosting Platforms for Full-Stack Angular Projects

Free Hosting Platforms for Full-Stack Angular Projects Introduction: As a developer, hosting your Angular project is a crucial step to showcase your work to the world. Luckily, there are plenty of free platforms available that provide seamless hosting for both the frontend and backend of your full-stack applications. In this blog, we’ll explore the best free hosting platforms for Angular projects, categorized into frontend and backend hosting solutions. Frontend Hosting Platforms These platforms are ideal for hosting the frontend part of your Angular application. Vercel: Free tier includes custom domains, SSL, and Continuous Integration/Continuous Deployment (CI/CD). Perfect for hosting Angular Single Page Applications (SPAs). Netlify: Free tier offers custom domains, automatic builds, and forms handling. Supports smooth deployment for Angular projects. GitHub Pages: Free for hosting static sites. ...

Difference Between AI Agent and AGI (Artificial General Intelligence)

Difference Between AI Agent and AGI (Artificial General Intelligence) Introduction: Artificial Intelligence (AI) has come a long way in recent years, powering everything from voice assistants to self-driving cars. But while the term "AI" is often used broadly, it's important to differentiate between the various types of AI systems. Two common terms in this conversation are AI agents and Artificial General Intelligence (AGI) . In this blog, we'll explore the difference between these two concepts and understand their significance in the realm of AI. What is an AI Agent? An AI agent is any system that perceives its environment, processes the information it gathers, and takes actions to achieve specific goals. AI agents operate based on algorithms, data, and predefined rules. These agents can range from simple, rule-based systems to more sophisticated models like reinforcement learning agents. Key Characteristics of AI Agents: Perception: AI agents collect...