querySelector() vs getElementById() in JavaScript
querySelector() and getElementById() are both methods used to access elements in the Document Object Model (DOM) of a web page, but they have some differences. …
Month: July 2023
Rest parameter vs Spread Operator in JavaScript?
The rest parameter and spread operator are two related features in JavaScript. The rest parameter allows you to represent an indefinite number of arguments as …
Difference Between Type and Interface in TypeScript
In TypeScript, an interface is a way to define the structure of an object. It’s a contract that defines the properties and their types that …
What is useEffect in React?
useEffect is a built-in hook in React that allows you to perform side effects in functional components. Side effects can include things like fetching data …
What is Prop Drilling in React?
Prop drilling in React is the process of passing data from a parent component down to its child components through props. This can become a …
What is the use of the React Context API?
The React Context API is used for sharing data between components without the need to pass props down through every level of the component tree. …
React Spread Operator ( …)
The spread operator (…) in Reactjs is used to expand an iterable (e.g. an array) into individual elements. It is often used to pass props …
useState() vs useReducer() in React.
useState() Both useState and useReducer are hooks in React that allow you to manage state in functional components. useState is a simpler hook that allows …
The JavaScript fetch() function.
The fetch() function in JavaScript is used to make network requests to a server and retrieve data. It returns a promise that resolves to the …
What is the difference between Props and State in React?
Props and state are both used to manage data in React components, but they have different purposes. Props are used to pass data from a …