ReactJS is one of the top and most well-known open source platforms in the field of early technology. Unique and innovative applications are created using the flexible Javascript library. We have written this blog to help the React JS developer community by shedding some light on the best practices of React JS. Therefore, they can create very effective web applications that can keep a good business. So, let's get into the details.


Reach JS component that can be reused

One working part is equal to one job which means that each working part must have one job. So when you create a functional component, create it with a single function. In this way, you can improve the reuse of React-based components.


Remove non-essential response code

“Keep the code as short and concise as possible??? is the most common rule in the entire application development process, let alone React. These advanced features of React.js are used to create clever and error-free code.

In software development, a system called Do Not Repeat (DRY) is used. It focuses mainly on reducing software duplication, replacing it with abbreviations, or using standard data processing to avoid any reuse.


To work with code formatting, you can use your style guide or you can use the popular style guide such as Airbnb React Style Guide, Facebook Style Guide, WordPress Style Guide, and so on. Whether you use your own or follow others, do not be confused with the various guidelines.



Index as keys

You will need to add key prop to your items whenever you use React to create more JSX items. Typically, React engineers use a map function to create an index that can set an important feature. Let me warn you. That's not the right way!

React uses a key feature to track everything in the list. And the degeneration of the same members will eventually lead to a situation where the wrong information is brought to the wrong place. Obviously, especially if you are looking for class and state components.


Make necessary Comments only

React developers should add comments to the app wherever needed. Removing the ability to add comments to the app means you need to write a completely smart code yourself without exception. This provides clear coding sections.

Often, comment means a place that shows bad design, especially long comments and words. It clearly shows that the React developers had no knowledge of what they were doing. And to close that, they wrote a long comment.


Be Aware of State and Rendering

In React, there are two levels of government. They have land and no kingdom. The official section provides the required context and maintains the status of the section. While the non-verbal component has no memory and was unable to provide any type of context in the visual component.

But the unfounded part is analyzed and can be reused. It also closely resembles a javascript function. It distinguishes logical logic from stateless logic. In fact, the best way to use the legal component is to download the data and the non-compliant component. Then that illegal part is used to display that downloaded data.


React v16.08 has been introduced with a new feature called React Hooks. Can write the most effective part. React Hooks have removed the use of any part of the class. Data should not be partial if it is not provided directly in the delivery method. And if data is not provided directly, it may result in unnecessary redistribution.


Use ESLint, Prettier, and snippet libraries

Squiggles will cry out for you because ESLint will require you to keep your code clean and tidy. You can link your IDE to this. Advanced processes allow you to save your ESLInt configuration file. Instead of disabling errors, a good React developer will try to fix all ESLint errors.

Prettier is the name of the React code formatting tool. Contains a container with a specific set of code formatting and decoding. You can check spells, length of activity, or get suggestions for better ways with the help of SonarLint. When using Husky, it is considered one of the best alternatives to both React JS and Git respectively. Husky can also be described in the package.json file. It can help you prevent your app from giving in to bad habits and bad dreams.

If you want to create better and more syntax-coded codes then a caption of the code is the right choice for you. They help you keep your code relatively accurate. You can also use multiple libraries such as ES7 React, JavaScript (ES6) code captions, and so on.


Add Security to HTTP Authentication Function

Authentication is used during operations such as user login or account creation in multiple applications. This job needs a lot of security because there are opportunities to prove the client's authenticity and authorization due to a few security issues sufficient to break the security agreements in the application.

Common methods used to verify authentication work include JSON Web Token, OAuth, AuthO, React Router, PassportJS, and so on.


Security with JWT function:

When using the JWT function to validate your verification process you should consider the points listed below: -

Never store JWT tokens based on storage. Because it will be easier for someone to get a JWT token if they use the Dev Toolbar browser console and type. console.log (localStorage.getItem ('token'))

Therefore, instead of storing your JWT token in the repository, save it in the HTTP cookie. Or there is also an option to keep your tokens in the status of your React JS app. JWT tokens should always be stored in the background. Because it can be easy to sign and confirm the keys on the back side.

You must request a strong and long password if someone is creating an account. It is also considered to be a React JS practice that uses long and unpredictable secrets such as passwords. But make sure you use HTTPS instead of HTTP. It will verify your React web application to provide a valid certificate that can also be sent to a secure SSL network.


Prevent Cross-Site Scripting (XSS)

To prevent universal encoding, you need to create default management features. This feature is used to clean user input. It will then reject all malicious and invalid user input to the browser. Prevent DDoS Attacks

If the React app has loopholes and blocks IP then you know that a security risk may be involved. It may also result in termination of services which may result in limited communication. The ways to stop it are as follows:

Average limit on APIs: - this method will help you to limit the number of specific IP requests to a particular source with a complete set of libraries that use Axios rating limit. Alternatively, one way is to specify the application level limit on the API.


SQL Injection

By using this type of attack, anyone can trick your data. By using invalid SQL code, attackers can modify user data without user consent and can extract any confidential information. So what is the solution to this?

If you want to eliminate any type of SQL injection attack, the first thing you should do is verify the API call function against their API schemes. You should use timely schema verification if you want to avoid suspicious code injection while handling the issue of timely SQL injection attacks.

Using an SSL certificate is another mandatory security measure against SQL vulnerability.