React.js : Its importance & uses Simplified!

What is React?

React is a Framework of Javascript that helps us create dynamic and user-friendly websites quickly. React is very popular among developers due to its creation of dynamic web applications and performance enhancements like virtual DOM and two-way data binding. React uses reusable components and has a small learning curve, making it easier to learn.

What is Virtual DOM?

Virtual DOM is a React feature that is an exact copy of Real DOM. We can understand the workings of Virtual DOM by this simple analogy. Suppose that the user clicks a button on our website and the changes need to be reflected in our website, but some of the components need to remain unchanged in the result. So the Virtual DOM will keep track of the changes and will only update the required changes on our website.

Component-based Structure.

React uses a component-based structure in making websites. It saves our time in making websites. Eg: You created a button for your website and you required the same button to be used again, so you can just use the previous button that you have created. React gives you the flexibility to integrate it into your dynamic websites. The main use of the component is that we can debug the error in our website more efficiently.

JSX and its Significance.

By using React we can integrate HTML to our Javascript files too. JSX is a type of file that uses both HTML and React to create websites. It gives us the freedom and confidence to code in HTML.

Passing Data with Props.

Data is passed into React components through props, accessible within the component function. React automatically updates the UI when props change. If any changes are made by the user in the website React basically "REACTS" to those changes.

Managing Component State with Hooks

React's state hook enables components to have an internal state. It provides a value and a function to update the value, resulting in dynamic UI changes.

These were some of the main features of React and why you should start learning React if you are new to Web Development. React also has the best community out there, always ready to help you if you are stuck in React. Because of all these factors React is used extensively in the majority of Websites making it a high-paying technology to learn.

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