Q2241. What is the use() hook in React 19?
The `use()` hook allows you to read the value of a resource (Promise or Context) during render, with Suspense integration. #### Reading Promises ```jsx import { use, Susp...
Technical Question Bank · Peer-Reviewed
Job Interview Questions and Answers Directory
Search and filter frequently asked interview questions across technical, programming, and behavioral domains. Tailor your interview preparation by difficulty for freshers or experienced developers (2,728 available).
Q2242. What is the difference between @staticmethod and @classmethod?
A staticmethod is a method that knows nothing about the class or instance it was called on. It just gets the arguments that were passed, no implicit first argument. It's ...
Q2243. What are dynamic imports?
The dynamic imports using `import()` function syntax allows us to load modules on demand by using promises or the async/await syntax. Currently this feature is in [stage4...
Q2244. What are Server Actions in React 19?
**Server Actions** allow you to call server-side functions directly from client components without writing API endpoints. #### Basic Server Action ```jsx // app/actions.j...
Q2245. What's the difference between a Python module and a Python package?
Any Python file is a module, its name being the file's base name without the .py extension. ```python import my_module ``` A package is a collection of Python modules: wh...
Q2246. 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...
Q2247. 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...
Q2248. What is GIL?
Python has a construct called the Global Interpreter Lock (GIL). The GIL makes sure that only one of your 'threads' can execute at any one time. A thread acquires the GIL...
Q2249. 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...
Q2250. What is the useOptimistic hook?
`useOptimistic` enables optimistic UI updates - showing changes immediately before server confirmation. #### Basic Usage ```jsx import { useOptimistic } from 'react'; fun...