React Developer Tools is a Chrome DevTools extension for the open-source React JavaScript library. It allows you to inspect the React component hierarchies in the Chrome Developer Tools.
Here are the steps to install it and use it:
1. Install React Developer Tools: You need to have Google Chrome installed on your computer. Open Google Chrome and visit the Chrome web store to install the React Developer Tools extension.
1. Open the Developer Tools Simply right-click anywhere on the webpage and hit inspect or use the F12 key. This would open the developer console. Here, you will find a new tab “Components” which provides the details about your React components
1. Navigate to the Component Tab Use the Component tab to see how your website is structured. Each component in the React tree gets its own node in the Elements Panel, and you can click on each one for more details. You will be able to see the props, hooks, and state of each component.
1. Searching Components If you are dealing with a huge number of components, you can simply use the search bar provided in the components tab section to find any component.
1. Profiling The Profiler tab in the React DevTools extension lets you record performance information about your React application. You can also monitor which component is re-rendered and at what time.
Remember, React Developer Tools is a powerful way to interact with your React code, but it’s not a magic bullet. The best way to improve your application’s performance is to write efficient, clean code from the start.