Technical Question Bank · Peer-Reviewed
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).
Iterating over the generator expression or the list comprehension will do the same thing. However, the list comp will create the entire list in memory first while the gen...
The CSS z-index property controls the stacking order of elements on a page. Elements with a higher z-index value are displayed on top of elements with a lower z-index val...
The strict mode is declared by adding "use strict"; to the beginning of a script or a function. If declared at the beginning of a script, it has global scope. ```javascri...
You should use default for exporting the components ```jsx harmony import User from "user"; export default function MyProfile { return //...; } ``` See Class ```jsx harmo...
It disables server-side rendering for a dynamically imported component, ensuring it only loads on the client side. ```jsx import dynamic from "next/dynamic"; const Dynami...
When a mixin and the component itself contain overlapping options, the options will be merged based on some strategies. 1. The data objects undergo a recursive merge, wit...
The **`UPDATE`** statement modifies existing data values in one or more rows of a table: ```sql UPDATE Customers SET email = 'new.email@example.com', updated_at = NOW() W...
Python arrays and list items can be accessed with positive or negative numbers. A negative Index accesses the elements from the end of the list counting backwards. Exampl...
CSS pseudo-classes are selectors that target elements based on their state or position in the document. Some examples include :hover, :active, :focus, :first-child, :last...
The double exclamation or negation(!!) ensures the resulting type is a boolean. If it was falsey (e.g. 0, null, undefined, etc.), it will be false, otherwise, it will be ...
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