React Components - DevExtreme React (2024)

FAQs

How do you memorize React components? ›

Memoization in React​

In functional React, component memoization is done using the React. memo API. Caching values of expensive utility functions and memoizing callbacks are two common ways of boosting a React app's performance. Caching function values is done using useMemo() hook.

Class components are still supported by React, but we don't recommend using them in new code.

DevExtreme React UI Components are released as an MIT-licensed (free and open-source) add-on to DevExtreme.

Usually, lazy loading is not used in React applications, since we mostly use React to develop single-page applications. Developers can bundle the entire code as a single bundle and use it for deployments. But, as the application gets complex, we need to consider performance and user experience.

The expected learning period for React ranges from one to six months, depending on your individual circ*mstances and existing programming knowledge. Having prior experience with JavaScript significantly speeds up the learning process because it's the programming language used to code React.

Starting with React can be tough, especially if you're new to web development. Concepts like JSX, components, and state management might seem like a maze. But don't worry! With some practice and patience, it gets easier, and React becomes more familiar.

Which framework has an easy learning curve for beginners React or Angular? React is beginner-friendly due to its simple syntax and easy to understand documentation but Angular has a steeper learning curve.

Angular: An angular framework is a TypeScript-based application that follows the MVC (Model-View-Controller) architecture. Angular is fast, robust, and scalable, but it has an enormous learning curve and intricate framework than React Js.

Apparently, create-react-app was deprecated in 2023, but most of the projects and tutorials still involve using it.

I really like their products, such as DevExtreme, and their support. Their documentation for their products is excellent. It gives you an insight into how they work and how you should use them. There is plenty of documentation on each, and the UI displaying the documentation is excellent.

Who owns DevExtreme? ›

DevExpress, the DevExpress logo, DevExtreme, and TestCafe are registered trademarks of Developer Express Inc.

DevExtreme is a paid JavaScript library providing pre-made web components for easier and faster responsive web development. Many elements can be found here, from basic textboxes to complex charts.

With the rise of functional components and hooks in React, class components have taken a backseat in modern React development. However, there are still scenarios where class components offer advantages over functional components.

If Your Web Page Has Minimal Heavyweight Content

Don't use lazy loading if you don't need it. There are a few reasons why too much lazy loading might detract from your site: Too much dynamic loading on your page causes interruptions and disrupts your visitors' experience.

Performance: Function components with React Hooks offer a more optimized approach to state management and side effects, potentially leading to better performance compared to class components. They avoid the overhead of class instantiation and provide a more lightweight alternative.

To use useMemo(), pass a function that performs the heavy computation you want to memoize as the first parameter and an array of all dependencies for that memoization as the second argument. useMemo() boosts performance by recalculating the memoized value only if one of the given dependencies changes.

To add focus to an element in React, we make use of the focus() method. This method, when invoked on a DOM element, directs focus to that particular element. To implement this in a React component, we first obtain a reference (ref) to the desired element.

Best Practices for Testing React Components

The AAA pattern is a fundamental principle in testing that helps maintain clarity and organization in your test cases. Arrange sets the test, Act performs the action or interaction, and Assert verifies the expected outcome.