Let’s discuss the problems which are solved by React.JS:
DOM operations are quite expensive in terms of performance, and any application that has much of DOM operations in the background will render slowly. For instance, while using the Twitter mobile site or Quora, as you scroll down the page you see an option saying 'show newer feeds'. Similar interactions are seen in Facebook as well. The Ads change, the trending topics list change over time, so there are lots of DOM operations going on in the background.
If the page has data that changes over time at high rates (for example, lots of people commenting on a post, likes being generated etc), then there is a requirement for DOM updates to be very fast and also reflect in other parts of the UI if they use the same data.
React solves this problem, without even having the page reload. It does by a concept called virtual DOM. When a page is rendered using React, the state of the DOM tree structure/hierarchy is stored, and when there any updates to be made to the UI, it does a diff on the previous (old) DOM tree with the new one, and updates only the ones that have changed. In this way, lots of DOM operations/refreshes are reduced, improving performance considerably.
React.JS, though not being an MVC framework, a lot of people considers it as the 'V' in MVC is specifically built for handling complex DOM interactions/updates. For instance, if you are developing a app for social network like Quora / Facebook, there are plenty of DOM interactions are likely to occur within a page (Lot of click events, hover events, posting, commenting etc). And since engineers at Facebook built React.JS it makes sense to use a solution which is specifically built for this very reason, which is tried and tested.
If one action needs to affect several other areas then React.JS will do it for you in a manner similar to the above point, making changes wherever necessary, without affecting/refreshing the other areas.
When using React.JS different UI parts of the app are separated into 'components'. One component would contain the necessary markup as well as the required JS to make it completely functional. Writing code in this way also makes it very modular and reusable; the same component could be used at different places in your app or even in an entirely different app.
React.JS is not too complex to learn. If you are a developer looking to provide React.JS Development Service, you would probably need few hours of learning through the docs and solving a few examples.
Projects that would benefit from above-mentioned capabilities can be considered a good fit for using React.JS. Here are the questions that you need to ask before you pick React.JS Development Service provider:
Should there be a ‘Yes’ to any of these questions, you can submit your inquiry to React.JS Development Services at XongoLab.
Original Article Published Here...
Like this article? Follow @xongolab on Twitter