Why Do You Need To Use React And What Are Its Features?
React is undoubtedly one of the most important libraries when it comes to web application development. It is based entirely on JavaScript, HTML and CSS. This library is fast, reliable, and has a very active community that provides support and increasingly powerful components to make it as easy to use as possible. In this article, we'll talk about what React is and how to build an application from scratch using this library.
To understand the features of this library in detail, you need to have a good understanding of JavaScript and ES6 syntax. You will need NodeJS installed to run the examples.
What is React?
React is a JavaScript library for building user interfaces. Unlike more complete frameworks like Angular and Vue, React only cares about the presentation layer, which means additional libraries are needed to handle other aspects of the front-end application such as authentication, routing, data flow, etc.
Today, reactjs development is a very popular direction, because the library offers its users a huge number of advantages. If you also want to develop your web application using this platform, then it is best to turn to specialists for help. Thus, you will receive a quality project that will meet all your requirements.
Let's take this opportunity to answer one of the most frequently asked questions in the world of front-end programmers: which is better to use Angular or React? Answer: both. Both have taken client-side software design to a higher level, both play their part by covering different issues: React alone is not enough to guarantee the full development of a very complex front-end application, so the choice may fall on using Angular or integration. React with other libraries. On the other hand, thinking about building an Angular-based framework for a single presentation layer development can introduce unnecessary overhead. In general, most of the choice is also left to the personal taste of each.
Virtual home
Before continuing, it is necessary to introduce the concept of virtual DOM. Those who are familiar with jQuery know that it is a library capable of directly manipulating the DOM of a web page. In many cases this does not pose much of a problem, but in others, such as a highly interactive application or an application that manages large amounts of data, the performance impact is quite noticeable.
To overcome these issues, many modern frameworks and libraries, including React, use the Virtual DOM concept to handle page rendering. Unlike the HTML DOM, the Virtual DOM is much easier to manipulate and can perform many operations in milliseconds without noticeable performance impact. React periodically compares the virtual DOM to the real DOM and performs the comparison operation it applies to the real DOM to make it identical to the virtual DOM. In this way, React provides a very smooth rendering of the application, avoiding latency issues for user interaction, which is an increasingly important aspect in developing custom applications for the web.
Components
Building a React app means creating one or more React components that can interact with each other. A React component is simply a JavaScript class that implements a render method. The render method does nothing but output the HTML it can generate using either JavaScript or JSX syntax. So a render method is sufficient to create a React component, but depending on the case, additional methods may be required to implement data management functions or lifecycle methods.
Therefore, if you want to create your own web application, then the best thing to do is to use React along with other tools, such as Angular. Thus, you will be able to create a complex and high-quality web application that will have all the necessary functions.
