Q641. What are the use cases for dynamic imports?
Below are some of the use cases of using dynamic imports over static imports, 1. Import a module on-demand or conditionally. For example, if you want to load a polyfill o...
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Q642. What are useFormState and useFormStatus hooks?
These hooks simplify form handling with Server Actions in React 19. #### useFormState Manages form state and handles server responses: ```jsx 'use client' import { useFor...
Q643. What are typed arrays?
Typed arrays are array-like objects from ECMAScript 6 API for handling binary data. JavaScript provides 12 Typed array types, 1. Int8Array: An array of 8-bit signed integ...
Q644. What is the useOptimistic hook?
`useOptimistic` enables optimistic UI updates - showing changes immediately before server confirmation. #### Basic Usage ```jsx import { useOptimistic } from 'react'; fun...
Q645. What are the advantages of module loaders?
The module loaders provides the below features, 1. Dynamic loading 2. State isolation 3. Global namespace isolation 4. Compilation hooks 5. Nested virtualization
Q646. What is the React Compiler (React Forget)?
The **React Compiler** (formerly known as React Forget) automatically optimizes your components by adding memoization where needed - eliminating the need for manual `useM...
Q647. What is string collation and Intl.Collator in JavaScript?
Collation is used for sorting a set of strings and searching within a set of strings. It is parameterized by locale and aware of Unicode. Let's take comparison and sortin...
Q648. What is Streaming SSR and how does React 18+ improve it?
**Streaming SSR** sends HTML to the browser in chunks as it's generated, rather than waiting for the entire page. React 18+ dramatically improves this with Suspense integ...
Q649. What is for...of statement?
The for...of statement creates a loop iterating over iterable objects or elements such as built-in String, Array, Array-like objects (like arguments or NodeList), TypedAr...
Q650. What is `renderToPipeableStream` and how is it different from `renderToString`?
`renderToPipeableStream` is the React 18+ Node.js streaming SSR API from `react-dom/server`. It streams HTML in chunks, so users can see content earlier and React can coo...