Q81. What are loadable components?
With the release of React 18, React.lazy and Suspense are now available for server-side rendering. However, prior to React 18, it was recommended to use Loadable Componen...
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Q82. What is the purpose of default value in context?
The defaultValue argument is only used when a component does not have a matching Provider above it in the tree. This can be helpful for testing components in isolation wi...
Q83. What are the problems of using render props with pure components?
If you create a function inside a render method, it negates the purpose of pure component. Because the shallow prop comparison will always return false for new props, and...
Q84. What is windowing technique?
Windowing is a technique that only renders a small subset of your rows at any given time, and can dramatically reduce the time it takes to re-render the components as wel...
Q85. What is the typical use case of portals?
React Portals are primarily used to render UI components such as **modals, tooltips, dropdowns, hovercards, and notifications** outside of their parent component's DOM tr...
Q86. What is your favorite React stack?
Even though the tech stack varies from developer to developer, the most popular stack is used in react boilerplate project code. It mainly uses Redux and redux-saga for s...
Q87. Do I need to rewrite all my class components with hooks?
No. But you can try Hooks in a few components(or new components) without rewriting any existing code. Because there are no plans to remove classes in ReactJS.
Q88. What is useEffect hook? How to fetch data with React Hooks?
The `useEffect` hook is a React Hook that lets you perform **side effects** in function components. Side effects are operations that interact with the outside world or sy...
Q89. How do you access imperative API of web components?
Web Components often expose an imperative API to implement its functions. You will need to use a **ref** to interact with the DOM node directly if you want to access impe...
Q90. What are React Server components?
React Server Component is a way to write React component that gets rendered in the server-side with the purpose of improving React app performance. These components allow...