JavaScript
What is a Promise in JavaScript, and what are its parameters?
A Promise in JavaScript is an object that represents the eventual completion (or failure) of an asynchronous operation and its resulting value. It is used to handle asynchronous operations more…
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How to Reverse a String in JavaScript: Two Essential Methods
Reversing a string is one of the most common beginner-level tasks in programming. It’s a…
Difference Between position: relative and position: absolute in CSS
Propertyposition: relativeposition: absoluteDefinitionThe element is positioned relative to its original position in the normal document…
What is Block level Element and Inline Level Element?
Block-level Elements Block-level elements occupy the entire width of their parent container (by default) and…
What is Position in CSS?
In CSS, the position property is used to specify how an element is positioned in…
Lasted JavaScript
How to Reverse a String in JavaScript: Two Essential Methods
Reversing a string is one of the most common beginner-level tasks in programming. It’s a great exercise to understand how…
What are the Lexical Scope in JavaScript?
Lexical scope in JavaScript means that the scope of a variable is determined by its position in the source code…
Is JavaScript a synchronous or asynchronous language?
JavaScript is primarily a synchronous, single-threaded language, but it also supports asynchronous programming through features like callbacks, promises, and async/await.…
Difference between document.createElement and document.createElementFragement in JavaScript?
Difference Between document.createElement() and document.createDocumentFragment() in JavaScript 1. document.createElement() This method creates a single HTML element. Syntax: javascriptCopyEditconst element =…
What is one-way data binding in React?
One-way data binding in React means that data flows in a single direction, from the component’s state or props down…
What are the Rest and Spread operators in JavaScript?
Rest and Spread Operators in JavaScript (...) The Rest Operator and Spread Operator both use three dots (...), but they…
What is memoization in JavaScript?
Memoization is an optimization technique used in JavaScript (and other programming languages) to speed up the execution of functions by…
What is Arrow and Normal Function in JavaScript?
Arrow Function vs Normal Function in JavaScript In JavaScript, Arrow Functions and Normal Functions (also called Regular Functions) are two…