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What is React? React is a popular JavaScript library for building user interfaces. It is helpful in building complex and reusable user interface(UI) components of mobile and web applications as it follows the component-based approach. List some of...
This article is the continuation of Part 1 read here What is a callback function in JavaScript? In JavaScript, a callback function is a function that is passed as an argument to another function and is intended to be executed later or when a certa...
In this article we will provide you with a comprehensive list of common JavaScript interview questions and answers that often come up in interviews What is JavaScript, and what are its key features? Javascript is a popular high-level programming l...
A list of top frequently asked CSS interview questions and answers are given below. What is CSS? CSS stands for Cascading Style Sheets.CSS stands for Cascading Style Sheet. It is a popular styling language which is used with HTML to design website...
In this article, I will share HTML interview questions. Basic HTML Interview Questions and Answers What is HTML? HTML stands for Hyper Text Markup Language. It is a standard markup language which is used to create and display web pages. HTML descr...
In this article, we will discuss the most important interview coding questions. 1. Find the frequency of elements in array using forEach() function getFrequency(array) { var frequency = {}; array.forEach(function(element) { if (frequency[ele...
In this article, we will learn about useCallback Hook The React useCallback hook can help you improve the performance of your React apps. useCallback() hook🪝 The React useCallback Hook returns a memoized callback function. The useCallback Hook only...
In this article, we will learn about useMemo Hook It works similarly to the useCallback hook The React useMemo Hook returns a memoized value. What is useMemo hook? useMemo() is a built-in React hook that accepts ✌️two arguments — a function and the...
In this article, we will learn about useReducer Hook The useReducer Hook is similar to the useState Hook. What is useReducer Hook? useReducers is a hook in React that allows you to manage state in a more complex way than useState. It is a function ...
