It is used to describe the appearance of the UI of an application. It is a markup syntax that is much similar to that of HTML.

JSX: JSX, abbreviated as JavaScript XML, is one of the best features of ReactJS. This way, the app development process is quicker and cost-efficient. Only the components that changed are updated and not all components in virtual DOM representation.

Virtual DOM re-renders the entire user interface with every modification in the web application. This way, a virtual DOM represents an original DOM. Replication of web pages in virtual memory is enabled through memory reconciliation algorithms. Virtual DOM: It facilitates the fast and flexible development of applications. Its main purpose is to be fast, scalable, and simple. It is also used to handle the view layer for web and mobile applications. Large applications that can change data, without reloading the page can be attained using React JS tool. It allows users/developers to create reusable UI components. Its components are used to define what should be displayed on the screen when a complex UI is composed with small and isolated pieces of code called “components”. ReactJS provides high application performance.

React course