React Concurrent Mode: A Major Enhancement on Offer for React Projects

After working on a crucial feature, at last, the core development team behind the React library unleashed it now. React Concurrent Mode’s new feature has just peeped out of the development lab, and the feature has not been officially announced. So, we may still need to wait for the feature to be available worldwide for React developers.

Since every subsequent React feature and value additions are extremely important for the React projects. So it’s very important to understand this new or upcoming feature fully. This is why before you hire ReactJS developers for your next app project, it is vital to have a closer look at this new offering. Here below, we explain the React Concurrent Mode in detail.

What does this Concurrency Refer to?

Concurrency in development is executing multiple code threads simultaneously instead of waiting for the previous task to complete. As it’s single-threaded language. Javascript prevents running the next thread until the previous task is finished. Concurrency has something to do to prevent this limitation. Concurrency allows developers to divide several programming tasks into smaller blocks and carry them out simultaneously.

What is React Concurrent Mode?

Thanks to the React Concurrent Mode, developers can now carry out multiple tasks simultaneously and switch between tasks as per the immediate need or priority. Most libraries follow sequential rendering, and so when the browser starts delivering the search results, new inputs in the search field need to wait for the search results to come out. The React Concurrent Mode addresses this limitation.

Because of the concurrent mode, React accommodates immediate inputs or changes in the input field when the memory updating is underway. Before the rendering search results are complete this new feature will allow completing the high priority inputs. This overall measure will allow React to complete high volume tasks in less time while always accommodating priorities.

Improving Developer and User Experience

For the core React team improving developer experience has always been a priority. For the developers, there have been many measures, such as more well-articulated error messages, creating highly predictable APIs, design integration, etc.

But when it comes to creating a smooth and iterative user experience in large apps. The sequential rendering of JavaScript has always been a major roadblock. This is where the concurrent mode can accommodate more versatile use cases. Apart from improving the end-user experience. The features will also provide a new means to experiment with rendering and make the user experience more intuitive.

Spiking the Development of Performance-savvy APIs

Concurrent Mode is likely to spike the creation of a new array of APIs. Makes things easier to introduce continuous changes. The introduction of Hooks and the Context API is an excellent example of the things that will arrive in the development scene soon.

Facebook, the company behind React, has already facilitated the integration of the Concurrent Mode. To give its website a more responsive and supple user experience. The company relies on an API called Relay Hooks to fetch all the data to achieve optimum Concurrency. The trend has just set in and is about to continue for the years to come.

Progressive Rendering is likely to Get Better

The progressive rendering that renders elements as they are fetched is common to most React apps, and this is one crucial contributor to the supple and smooth user experience of the React apps. But this approach is still limited when we need to show some content on priority without rendering the whole web page. This is exactly where the new concurrent mode can do wonders.

The progressive “render as you fetch” approach is likely to get better because of the concurrent mode. If we don’t want to delay the loading of the entire body of the web page. And at the same time want to load the new inputs such as user comments. We need concurrent rendering while maintaining the same or better loading speed. This may seem difficult, considering the state of things and the JavaScript constraints.

Now the concurrent and fast-paced loading of multiple web page contents can take the help of data-fetching libraries along with the concurrent mode of React. This is achieved by this new React feature through crucial features such as parallel data and view trees, fetching data through event handlers, incremental loading of byte-sized data and dealing with code like regular data.

Incorporating Research into Development

One of the most significant advantages of the new React Concurrent Mode is incorporating new research inputs & findings into the development and web experience. Because of this new feature, all the new findings result from user interaction with the devices and interfaces. Now Can be incorporated into the web user interface development.

The New React Concurrent Mode solves the technical issues of the slower transition from one page to another in a unique way. When anything is loaded, the feature shows this loading state with a fixed schedule to do away with collision and make loading smooth.

Many on-screen user inputs these days tend to be faster. For example, hovering and finger-taps can be quicker, but the transition from one page may not respond quickly. The Concurrent Mode deals with these interactions and continuous inputs by flagging them as “priorities”.

Conclusion

React developers continue to make their web apps more intuitive, interactive, flexible and faster. Naturally, for them, the concurrent model has emerged as a well-deserving feature making their tasks easier. Many developers try to achieve faster loading and simultaneous rendering by trying custom and one-off solutions.

There is a very rare case when other developers use these handcrafted solutions. And It is very difficult to maintain these handcrafted solutions. On the other hand, Concurrent Mode achieved a long-lasting goal to incorporate continuously evolving UI interactions into a vigorous abstract solution with several idiomatic ways of solving them.