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 storing the results of expensive function calls and returning the…
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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 = document.createElement('div'); Key Points: Example: javascriptCopyEditconst div = document.createElement('div'); div.textContent =…
What is Life Cycle method in React?
In React, lifecycle methods are special methods that are automatically called at different stages of a component's life cycle.They allow you to control what happens when a component is created,…
What is a Higher-Order Component (HOC) in React?
What is a Higher-Order Component (HOC) in React? A Higher-Order Component (HOC) is an advanced React pattern that involves a function that takes a component as an argument and returns…
What is Higher Order Component in React?
What is a Higher-Order Component (HOC) in React? A Higher-Order Component (HOC) is an advanced React pattern that involves a function that takes a component as an argument and returns…
What is props drilling in React?
Props Drilling is a situation in React where data (props) needs to be passed through multiple levels of components, even though some intermediate components do not need the data—they only…
How Can You Share Data Between Components in React?
In React, there are several ways to share data between components, depending on the relationship between them and the complexity of the application. Here are the most common methods: 1.…
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 to the user interface (UI). How One-Way Data Binding Works:…
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 serve different purposes depending on how and where they are…
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 storing the results of expensive function calls and returning the…
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 ways to define functions. They differ in syntax and behavior,…
What is the this Keyword in JavaScript?
The this keyword in JavaScript refers to the object that is executing the current function. Its value depends on how and where the function is called. Key Rules for this…
What is Scope in JavaScript?
Scope in JavaScript refers to the context in which variables are accessible. It determines which part of the code can access and manipulate a particular variable. Types of Scope in…
What are the map, filter, and reduce methods in JavaScript?
In JavaScript, map(), filter(), and reduce() are array methods that help in transforming and processing data efficiently. They are part of the functional programming paradigm and are commonly used in…
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…
What is Callback Hell in JavaScript?
Callback Hell in JavaScript refers to a situation where you have multiple nested callbacks, making the code difficult to read, debug, and maintain. It often occurs when you perform asynchronous…
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