ReactJs Tutorial: Introduction to ReactJS
These days' users are looking for highly interactive web applications both for general users and business users. There are many frameworks for the development of dynamic web applications which use JavaScript, Ajax, CSS, HTML5 and other related technologies. ReactJS is the most popular framework among them and it is developed by Facebook. This is a front-end framework for developing reusable UI components in a web application.
ReactJS is a JavaScript library which allows the developers to build composable user interfaces. It is used to develop the reusable UI components in the web application which can be used in the application as per requirement. The ReactJS is based on the popular MVC framework and mostly used as a view (V) component in the application. The ReactJS abstracts the DOM handling and provides an easy interface for high performance web application UI. The RactJS can also be used for creation of React Native applications. React can also be used as a React Native application where applications can be rendered on the server side for different types of operating systems. React implements the popular one-way data flow, which reduces the coding effort and makes complex application development much easier.
React Features
JSX: The JSX is a JavaScript syntax extension which is used in development of React applications but it's not necessary. It is recommended to use JSX but not necessary and the choice of development method is totally upon the developer.
Components: ReactJS is a components based framework and developers should develop the components so that it can be used in application to make it more modular. It is very important to make your application modular while working on large scale projects.
Unidirectional data flow of data and Flux: React designed to implement the one-way data flow which makes it easy for the application development. Flux is a framework for keeping the data unidirectional. ReactJS uses the Flux framework for unidirectional flow of data.
RectJS License: The ReactJS is licensed under Facebook Inc. Documentation is licensed under CC BY 4.0, which allows the users to use this framework for both open-source and commercial application.
React Advantages
ReactJS is a JavaScript library for UI component development which hides the complexity of DOM management from developers and provides an easy interface to interact with web page components. It creates a virtual DOM of the web page components which can be accessed in JavaScript code. Virtual DOM is very important as it is faster than the regular DOM and helps developers in creating fast applications.
The ReactJS can be used both in client and server side as an application development framework.
ReactJS supports the development of reusable components which increases the readability and maintainability of big projects.
React Limitations
ReactJS is an excellent framework for dynamic web UI development but it lacks a back-end framework. So, for using ReactJS framework we need a back-end framework for serving requests generated from ReactJS applications. So, it requires a lot of technical knowledge to work with ReactJS for end-to-end application development. A lot of learning and a wide range of technological background is required to work with ReactJS for successful application development.
The learning curve of ReactJS is very high and it requires a lot of effort to learn all the techniques necessary for complete application development.
ReactJS uses JSX which is good for the application but it is a little difficult for the newcomers in ReactJS programming. Developers are finding difficulty in learning the JSX and sometimes complain about its complexity.
Due to poor documentation of this framework, developers are also finding difficulty in getting started and help in developing complex applications. But, thanks to the active community of developers who provide help in blogs and on the developer group.
