When using React JS, developers create a ‘Virtual DOM’. This DOM is a copy of your website’s DOM. It determines which parts of your website need to be changed when an event occurs. When a user clicks or touches an element in your app, the DOM reloads. React is able to perform this task without requiring the entire website to be reloaded.
You can also use the React front-end library to update state data, prop changes, and default browser actions. To do so, you can use the SyntheticEvent wrapper, which replaces the native Event interface. To learn how to use this interface, you’ll build a sample component that handles user events. You’ll learn how to add event handlers to a component, pull information from the SyntheticEvent, and create Window event listeners.
Another benefit of React is its modularity. By splitting code into smaller components, you’ll be able to reuse code that has been used in other functions. This allows you to avoid writing unnecessary classes and digging into JavaScript theory. And since you don’t have to worry about syncing the components, React can help you save time. There are a few things you should know before diving into React. And as you’ll see, React can be extremely beneficial for web developers.
React JS also allows you to use virtual DOM (VDOM) to improve the speed of updates. Other frameworks work with the Real DOM, which is a tree structure, whereas ReactJS uses an abstract copy of it instead. This means that React can update a section of the DOM without changing anything else. And this can speed up the overall loading time of your website. You can see examples of how React works by visiting a React example website.
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