What is React Js ? Let's understand in simple words what “react” means. The general meaning of “react” is 'to do or say something because of something that has happened '. ReactJS is just like the same. In simple words, “react” in the context of ReactJS means to update or change part of the web page or user interface in response to something that has happened, such as a user clicking a button, entering the data in the form, or getting new information from the server, etc. In everyday life, when something happens, we react to it. For example, if we are in a classroom and the teacher asks a question, we respond with an answer. Similarly, in web development, ReactJS helps developers build web-based applications that react to user actions or data changes. When users interact with a React-powered web application, it dynamically updates the user interface to show new information or reflect the user's input without needing to reload the entire page. Now, you are t...