Time Legend It And Hr Consulting Solutions Web Developer Interview Questions, Process, and Tips

Hooks are functions that allow developers to use state and other React features in functional components.

• Hooks were introduced in React 16.8

• They allow functional components to have state and lifecycle methods

• Examples of hooks include useState, useEffect, useContext

useState is a hook in React that allows functional components to have state.

• useState is a hook provided by React for managing state in functional components.

• It returns an array with two elements - the current state value and a function to update that value.

• Example: const [count, setCount] = useState(0);

Axios is a popular library for making HTTP requests in JavaScript, while fetch is a built-in browser API.

• Axios is a third-party library that works on both client and server side, while fetch is a browser API that only works on the client side.

• Axios has built-in support for handling request and response interceptors, while fetch requires more manual handling.

• Axios has better error handling and response validation compar...read more

React has three main lifecycle phases: Mounting, Updating, and Unmounting.

• Mounting: Component is created and inserted into the DOM.

• Updating: Component is re-rendered when props or state change.

• Unmounting: Component is removed from the DOM.