ReactJS Introduction

ReactJS Introduction. The development of mobile applications today IT industry is one of the most profitable and the most popular by the number of practicing developers direction. The popularity of mobile gadgets and smart phones has made a real revolution in the digital world, forcing many companies to throw all their forces to gain a place in the market of mobile device applications.

Strong demand for mobile applications and high competition in the mobile software market is forcing developers to constant self-improvement, and their main task is to quickly develop simple, convenient and highly efficient products. The result of this trend was the popularity of single-screen applications – simple and fast to develop programs that consist mainly of the user interface. As a result, a lot of front-end libraries and frameworks began appearing, whose main function is assisting in the development of simplistic applications with a functional interface. The leading advantage of such tools is the operational efficiency, high response speed and fast execution of custom commands, as well as maximum convenience for developers. One of such frameworks is ReactJS.


ReactJS is the open-source library for creating user interfaces. Its basic goal was to solve the problem of partial web page update in the single-screen applications. React was originally developed by the Facebook company experts; today the library is constantly updated and fixed also by numerous members of external developer communities. Since its release, ReactJS started to rapidly gain popularity and is today one of the most used tools in the development of mobile applications.

Why did it happen? Let us review the benefits that the framework gives to developers:

    • cross-platform development: React is a versatile multi-platform tool; the application created with its help can be quickly adapted to new operating systems;
    • One-way binding: some of the ReactJS components after rendering are treated similarly to HTML tags and their properties can be changed only through callback functions;
    • “Virtual DOM”: React does not operate the DOM directly, but builds the tree of the JavaScript elements (which is often incorrectly called the virtual DOM) mirroring the real DOM. If any changes must be made, the library quickly compares the states of the tree and the DOM thus choosing the nodes that must be replaced in accordance with the changes in the former, instead of reloading the whole DOM;
    • JSX: With aid of React’s JSX, developers can code in JavaScript, while getting results in the form of HTML pages;
    • Visualization: The view of the developed application’s interface is rendered in parallel with the process of writing code, enabling the developer to see the results of their actions in the form of a web page in real-time;
    • Server-side render: this feature of the framework in some cases allows speeding up the rendering of the page in times and, in turn, increases the reactivity and sleekness of the user interface.


ReactJS, in general, fully justifies its popularity, being a useful tool for the user interface design and the single-page applications creation. Library’s logic and interface layout principles allow for an impressive scalability.

The result of the ReactJS development will be a fully and efficiently working component or a one-page application with architecture, logic and interface easily adaptable for any platform.

Share on Facebook0Share on LinkedIn0