The React Developer tool is a very useful Chrome extension that helps the developer to debug and inspect React components, states, props, hooks, etc. It makes understanding where what is implemented very easy. It can also be used to determine if a particular website uses ReactJs or not.
How to add React Developer tools to Chrome extension
To add the extension for Chrome follow this link: https://chrome.google.com/webstore/detail/react-developer-tools/fmkadmapgofadopljbjfkapdkoienihi/related?hl=en-US
Click on “Add extension”
If you want to want to manage the extensions you can go to Extensions in the tools menu of your browser
To do that we need to go to the extensions tool in the upper right corner of the tools menu.
If the icon of the React Developer tool extension is colorful then the website uses ReactJs.
If it does not show a colorful icon then it does not use ReactJS.
When you open the Chrome browser dev tools after installing the React Developer tools, you’ll see two additional panels: Components and Profiler. Chrome Devtools may be accessed by right-clicking, selecting inspect from the dropdown menu, or typing Ctrl+Shift+I.
Components tab: The components tab’s primary function is to display the React application’s organizational structure. The structure demonstrates how each component is nested. We also learn more helpful details about the parts, for instance, functions, state, context, and props.
We can easily locate a component by clicking on the structure and it will highlight the component that it renders.
Below is an example of a simple to-do list React app.
In the image above, when the div consisting of the input element is clicked on, it highlights the same in the rendered webpage.
We want to know what’s going on inside our components most of the time. We can view a lot of helpful information about the component using React developer tools. As we use the program, we can also watch how the information changes. As an illustration, the props have changed here.
As illustrated above, when we update the to-do list with two inputs, it is passed as a prop into the ColumnList component, which is then rendered on the webpage. We can see the props in the lower section in the above image.
Profile tab: Profiler demonstrates how long it takes for each of our app’s components to render. We can determine which component is making our application sluggish. Of course, it should also perform better. Additionally, it displays if the component was rerendered and the cause of the rendering. If our app isn’t performing any pointless re-renders, it’s worth checking. And if they are, we can probably improve them, enhancing the speed of our React website.
Developing front-end components: The development of UI components including icons, pictures, and motion functionality may fall under the purview of React developers. Swiping, long-pressing, and drag-and-drop are a few examples. The primary duty is to provide responsive interactive technology for dynamic websites.
Working with different teams: They must collaborate with the client, backend developer, product, and UI teams to more fully grasp how to implement their vision for the app through software development.
Testing and optimizing the software: React developers are also in charge of planning and building new features and ensuring cross-platform capabilities. They guarantee that the program will function effectively across a range of browsers and platforms. Before the application goes live, they must test and debug the interface software.
Node.js enables the creation of scalable and quick back-end RESTful APIs. The front-end library React, on the other hand, produces interactive user interfaces. You can quickly create sophisticated and scalable web apps using both technologies. When utilized together, they may save critical development time and help make your web app code efficient and scalable.
The most often used platform for hosting and operating web servers for React apps is Node. After all, the Node Package Manager (NPM) command-line interface CLI allows you to install any package using NPM. Because NPM CLI is trustworthy package management, installing a package from among the many that are listed in the registry is quite simple.
Additionally, Webpack and other modules are used by Node to convert a React application into a single file that is simple to compile. It is quite simple to combine your multi-file React application into a single file for production and compile JSX (using Babel) while doing so thanks to the Webpack Node package.
There are many other advantages to picking Nodejs:
NodeJS is a good option since you don’t need to worry about multithreading for a web app in today’s architecture. Since the NodeJS web application you create should be stateless (you will connect to backend services via APIs), autoscaling (load balancing) them horizontally for redundancy and capacity is simple.
A few things are essential to becoming a good React developer:
Reading the documentation: Go over every page of their documentation. Every active React developer relies on it since it is the finest online resource. It will familiarize you with the principles you need, be up to date, and, most importantly, provide you with a ton of examples to work with.
Asking questions: It’s OK to conduct a web search when you need information or run into a coding problem. All React developers perform this task by searching on StackOverflow or Github, for example. Owning your own inquiries is also crucial.
Developing web apps: Similar to any other language or framework, you continually practise. After mastering the fundamentals of React, you continue to explore the many components of the framework. Build bigger and bigger projects, and each time you need something, look for anything new you can use.
Deploying your work: Make sure to list all of these projects on your resume after developing larger applications. You must first deploy them on the web to achieve that. React apps are relatively easy to deploy. Simple hosting services like Netlify or Heroku, which are both free and easy as pie, are all you need to learn how to utilize.