State is mutable and managed within a component, while props are immutable and passed from parent to child components.

• State is used to manage internal data within a component.

• Props are used to pass data from parent to child components.

• State can be changed using the setState() method.

• Props are read-only and cannot be modified by the component receiving them.

• State is local to a component, while props can be accessed by multiple components.

• Example: State can be used to store for...read more

React.js is a JavaScript library for building user interfaces.

• React.js is a popular front-end library developed by Facebook.

• It allows developers to build reusable UI components.

• React.js uses a virtual DOM for efficient rendering and updates.

• It follows a component-based architecture, making it easy to manage and maintain code.

• React.js supports server-side rendering for improved performance and SEO.

• It has a rich ecosystem with a large community and extensive documentation.

React Router is a library that allows for routing in React applications, enabling navigation between different components.

• React Router is a popular routing library for React applications.

• It provides a way to handle navigation and rendering of different components based on the URL.

• React Router uses a declarative approach, allowing developers to define routes using components.

• It supports different types of routing, including browser history, hash history, and memory history.

• Rea...read more

Keys in React list help identify and track individual items, improving performance and enabling efficient updates.

• Keys help React identify which items have changed, been added, or been removed in a list.

• They help improve performance by allowing React to reuse existing DOM elements instead of creating new ones.

• Keys also help maintain component state and prevent unnecessary re-rendering of components.

• Keys should be unique within the list and stable across re-renders to ensure p...read more

I have experience in full stack Java development and have learned various technologies and frameworks.

• I have worked with Java, Spring Boot, and Hibernate for backend development.

• I have experience in front-end development using HTML, CSS, and JavaScript.

• I have used frameworks like Angular and React for building user interfaces.

• I have knowledge of databases like MySQL and MongoDB for data storage.

• I have learned about RESTful APIs and have implemented them in my projects.

CSS stands for Cascading Style Sheets and is used to style the appearance of web pages.

• CSS is used to control the layout, colors, fonts, and other visual aspects of a website.

• It helps in separating the content of a website from its design, making it easier to update and maintain.

• CSS can be applied inline, internally within the HTML document, or externally in a separate CSS file.

• Selectors in CSS allow targeting specific elements to apply styles.

• CSS can also be used for creatin...read more

JSX is a syntax extension for JavaScript used in React to write HTML-like code in JavaScript.

• JSX allows developers to write HTML-like code in JavaScript, making it easier to create and manipulate UI components.

• It combines the power of JavaScript and HTML into a single syntax, allowing developers to write more expressive and concise code.

• JSX is transpiled into regular JavaScript code by tools like Babel before being executed by the browser.

• It helps in creating reusable compone...read more

The rate of 1 out of 10 is 10%.

• The rate of 1 out of 10 can be expressed as a fraction: 1/10.

• To convert the fraction to a percentage, divide the numerator by the denominator and multiply by 100.

• In this case, 1 divided by 10 equals 0.1, which when multiplied by 100 gives 10%.

Virtual DOM is a concept in React where a lightweight copy of the actual DOM is created and manipulated for efficient rendering.

• Virtual DOM is a JavaScript representation of the actual DOM.

• It allows React to efficiently update and render only the necessary parts of the UI.

• When there are changes in the state or props, React creates a new virtual DOM tree and compares it with the previous one.

• React then updates only the differences between the two virtual DOM trees in the actua...read more

The component lifecycle in React refers to the different stages a component goes through from creation to deletion.

• The lifecycle methods in React can be divided into three main phases: Mounting, Updating, and Unmounting.

• During the Mounting phase, the component is created and inserted into the DOM.

• During the Updating phase, the component can be re-rendered due to changes in props or state.

• During the Unmounting phase, the component is removed from the DOM.

• Some commonly used lif...read more

Data flows in React through a unidirectional flow called props and state.

• Data flows from parent components to child components through props.

• Child components can modify the data by calling functions passed as props.

• State is used to manage data within a component and can be updated using setState().

• Changes in state trigger re-rendering of the component and its child components.

HTML is important for creating the structure of web pages and displaying content on the internet.

• HTML is the standard markup language used to create web pages.

• It provides the structure for content on the internet, including text, images, links, and more.

• HTML elements are used to define the different parts of a web page, such as headings, paragraphs, lists, and tables.

• It works in conjunction with CSS for styling and JavaScript for interactivity.

• Example:

  This is a heading

Bootstrap is a popular front-end framework for building responsive and mobile-first websites.

• Bootstrap provides a grid system for easy layout design

• It includes pre-designed components like buttons, forms, and navigation bars

• Bootstrap's responsive utilities make it easy to create mobile-friendly websites

React handles forms using controlled components and state management.

• React uses controlled components to manage form input state.

• Form input values are stored in the component's state and updated through event handlers.

• React provides event handlers like onChange to handle form input changes.

• Form submission can be handled using onSubmit event handler.

• Validation and error handling can be implemented using conditional rendering and state management.