React : react developer tools (Chrome Extension)

React Developer Tools is a browser extension available for Google Chrome that provides developers with a set of helpful tools for inspecting, debugging, and profiling React applications. It is designed specifically for developers working with React, a popular JavaScript library for building user interfaces.

Here are some key features and functionalities of React Developer Tools:

1. Profiling and Performance Analysis: React Developer Tools provides performance profiling capabilities that help you identify performance bottlenecks in your React application. You can record and analyze rendering times, track component updates, and optimize your application's performance.
2. Time Travel Debugging: The extension integrates with the Redux DevTools extension, enabling you to inspect and debug the state changes of your Redux store. You can replay actions, track state changes over time, and understand how your application's state evolves.
3. Component Editing: React Developer Tools allows you to make temporary edits to the props and state of your components to see how they affect the rendered output. These edits are not persisted and only affect the currently inspected instance of the component.
4. Component Highlighting: When you select a component in the React Developer Tools panel, it highlights the corresponding component in your application's UI. This feature helps you identify which component is responsible for a specific part of your application's UI.
5. Props and State Examination: With React Developer Tools, you can easily inspect the props and state of each component in your application. This helps you understand how data is flowing through your components and how they're rendering based on different props and state values.
6. Component Tree Inspection: React Developer Tools allows you to examine the component hierarchy of your React application. You can inspect individual components, view their props and state, and navigate through the component tree to understand the structure and relationships between components.

React Developer Tools greatly simplifies the process of debugging and understanding React applications. It gives developers deeper insights into the component hierarchy, props, and state, helping them identify and fix issues efficiently. By leveraging the extension, developers can streamline their development workflow and enhance the overall quality of their React projects.

 

https://chrome.google.com/webstore/detail/react-developer-tools/fmkadmapgofadopljbjfkapdkoienihi

React Developer Tools

Setting

=> Activate the Highlight updates section so that you know which component is being rendered.

 

Feature (React Component)

=> You can see the component tree as shown in the picture.

Feature (React Profiler)

This plugin uses React's Profiler API to collect timing information for each component being rendered to identify performance bottlenecks in your React application. You can check the time required when each component is rendered.