Virtual DOM
The Virtual DOM has made React considerably more useful, among other major changes. It achieves this by storing a compressed version of the original DOM in memory. React uses this "diffing" mechanism to identify differences in order to notice changes. React updates the Virtual DOM whenever a component's state changes. There is no need to reload the page because this approach simply updates the updated DOM components. This strategy eliminates dependency on direct DOM interactions, which are frequently sluggish and unproductive, while improving web app speed and user experience.
Component-Based Architecture
React's use has expanded dramatically with the introduction of the Virtual DOM and other noteworthy advances. In order to do this, a compressed copy of the original DOM is kept in memory. This "diffing" technique is used by React to identify differences and identify changes. Every time a component's state changes, React makes modifications to the Virtual DOM. This approach just updates the modified DOM components, thus there's no need to reload the page. By lowering reliance on direct DOM interactions—which are often sluggish and ineffective—this method improves the usability and efficiency of web apps.
JSX (JavaScript XML)
JSX, or JavaScript XML, is a syntactic extension for JavaScript that allows programmers to write HTML-like code directly within JavaScript files. This feature makes the code easier to read and makes setting up the user interface easier. Additionally, debugging is much easier. JSX enhances code readability and maintainability by combining functionality and layout into a single file. After compilation, JSX is converted into standard JavaScript function calls to ensure compatibility with all major browsers.
Unidirectional Data Flow
React confines intra-application data transmission to one way, ensuring unidirectional data flow. This method makes data management and debugging easier by making it clear how data is updated and modified, as well as keeping track of changes in program state. Callbacks allow child components to notify parent components of changes, whereas props allow React components to pass data to their child components. Discrete data flow encourages predictability and control over the program's state, lowering the risk of errors and facilitating code maintenance.
React Native
React Native extends React's features, allowing you to construct mobile apps. React's principles enable developers to create cross-platform mobile apps with a single codebase. React Native enables the construction of native components using JavaScript code, which may subsequently be used to build native views. This method will be used to develop iOS and Android mobile applications that have faultless operation and a natural feel. By sharing a large percentage of the codebase between web and mobile apps, React Native significantly cuts development time and costs, allowing businesses to expand their digital presence with less effort.
