10 React JS Development Tricks to Optimize React Performance

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ringing a new age for front-end developers, React JS, since its inception, has totally changed the way developers build web applications. This open-source JavaScript library is especially used for building user interfaces (UIs). Launched by Facebook in 2011, React JS has gained a lot of popularity due to its ability to create high-performance, reusable UI components. Additionally, ReactJS App Development Services have brought in a new league of applications based on React.

The Java-based framework allows React JS developers to build complex and dynamic UIs using a declarative syntax. Moreover, to update UI efficiently and optimize the performance, it leverages a virtual DOM (Document Object Model) at the best. Beneficially, when a change is made to the UI, ReactJS only updates the specific component that needs to be updated, rather than the entire page. Hence, it leads to faster rendering times and a better user experience.

If you are looking to develop your apps on React JS framework, then it is time to check for ReactJS app development services to get apps built. On the other hand, if you have your apps on React JS framework, you might want to check for the things that can help you optimize their performance. 

Generally, React JS implies smart techniques to reduce the cost of DOM operations required to update UI. For numerous applications, leveraging React will lead to a faster user interface without requiring to do extra job work, especially in optimizing for performance. And for this, you can always rely on ReactJS Development Company India. Nevertheless, there are several ways you can speed up your React application by leveraging ReactJS Development Services.

MUST APPLY #10 Techniques to Improve React JS Performance

1.Use Pure Components

Use pure components instead of class components to avoid unnecessary renderings and improve performance. PureComponent automatically implements the shouldComponentUpdate method, which does a shallow comparison of props and states to determine whether the component should update or not. Get your ReactJS Web Development Services to get the job done more efficiently. 

2. Use React. memo

Wrap functional components with React. memo to memoize the component and prevent re-rendering if props have not changed. The React.memo() Higher Order Component (HOC) helps to prevent re-renders of functional components, thus reducing the time taken by React JS developers to do it functionally. This HOC memoizes the result of a functional component, so it will only re-render if its props change, lowering the load rate. 

3. Avoid Re-rendering

It is always a great idea to avoid re-rendering to cut down the load on your app speed. The best way is to minimize the number of re-renderings by passing data down the component tree instead of using context or state updates. Let us see it this way, suppose you have a store with usernames and their roles in the app. To get all administrators from the list of users, you need to run a code. But rather than having the code run every time to fetch the results, it is easier to add a fix, which allows you to cache calls and receive data depending on the requirements. This will incredibly reduce the load on the system as well as improve its performance. However, if you are struggling to render this, it is always better to leave this task to the Best React JS Developer India for optimal results.

4. Use Lazy Loading

One of the most opted techniques recently by ReactJS Development Company India, Lazy loading is a buzz in the community of this Javascript framework developers. ReactJS Development Services will imply loading components only when they are needed by using the lazy loading feature introduced in React 16.6. Expert React JS Development Company is always well aware of the latest updates of React framework and thus can bring in new techniques to optimize the performance of your React apps. It is beneficial only to use lazy loading and code splitting when it comes to loading the components that are necessary for the current view. This helps to reduce the initial load time of your application.

5. Use the Latest Version of React

For React Js Development, it is always better that you ensure to use the latest version of React. Each new version usually comes with performance improvements and bug fixes. Hence, it helps to eventually optimize the performance of your apps. Also, ensure that your React Js development services implement the latest version of React to develop apps that can meet the new age demands. 

6. Use React Developer Tools

It is always fruitful to leverage the React Developer Tools browser extension to analyze your application’s performance and identify areas that can be optimized. This helps not only to find the loopholes but also to fix the errors and remove the bugs to enhance the performance. For high results, it is always good to leave this in expert hands. Hire React Js Developer in India to get your apps on high performance making the best use of React Developer Tools. 

7. Use Immutable Data Structures

The best part of React JS development is that it has immutable data structures. Implementing immutable data structures like Immutable.js or seamless-immutable, it is easier for React JS developers to ensure that your data does not change unexpectedly and trigger unneeded renderings.

8. Use the Right Keys

Usually, during ReactJS app development, make sure to use unique and stable keys when rendering lists to avoid re-rendering the entire list. During the process of rendering lists in React, it is beneficial to always use a unique key prop for each item. Because this helps React JS development to identify which items have changed and need to be re-rendered.

9. Use Virtualization

It is one of the best techniques to be used by React JS development services to improve app performance. Due to the large lists mostly in many apps, performance issues arise. This happens as the result of the rendering of the entire list in DOM, leading to UI lag and eventually poor app performance. However, by virtualizing the large lists and grids, this bottleneck is removed. In place of the long list of components to be rendered on the app screen, only the restricted list is rendered on the DOM as much as visible. Leave this task to your React JS Development Agency partner and see improve your app’s performance.  

10. Use ShouldComponentUpdate

Implement the shouldComponentUpdate lifecycle method to optimize when components render based on the values of their props and state. It is usually noted that most of the performance issues in mobile apps are resolved by just making small changes but big enough to increase the speed of your app. One such small thing in React JS is ShouldComponentUpdate trick. It is a React lifecycle hook that avoids re-rendering of any given component if its state does not change. For example, you have a complicated nested structure, and in this structure, just only one component requires changes. Thus, rendering the entire nested structure would be a waste of resources. On the other hand, with ShouldComponentUpdate implementation, it is easier to direct React to accept that particular change and ignore all other components. 

With a whole league of components, tools and techniques React JS is awesome! Tips and tricks that are mentioned here, you may not pick them all and implement them, but make sure that first let your project get on started with the code and then do the rendering and optimizing wherever required. There are numerous ways to optimize React JS for your app performance. However, it is crucial to work on the right things to improvise rather than applying and implementing whatever comes over. It is wiser to hire React JS developer in India or look for an expert React JS app development services to improve the performance of your app.