ReactJS Tutorial

How Does ReactJS Work?

ReactJS Working Process

When React was being developed, the developers realized that DOM (Document Object Model), an API for HTML and XML documents, was slow. React was developed to resolve this issue.

It implements a virtual DOM, a DOM tree representation in JavaScript. The virtual model is used whenever necessary to read or write to the DOM.

Imagine your HTML code as a tree maintained by React. You use this tree to perform different computations. React allows you to effectively reconstruct your DOM in JavaScript and push only those changes to the DOM which have occurred.

React is quite simple to understand and use. It has a small API, and therefore developers can quickly familiarize themselves with the working and components.

Test your knowledge with a quick quiz:

What does ReactJS implement to manage the DOM?

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