Websadroit Interview Questions and Answers

Hooks are a feature in React that allow you to use state and other React features in functional components.

• Hooks were introduced in React 16.8.

• useState() is a hook that allows functional components to have state.

• useEffect() is a hook that allows functional components to perform side effects.

• Other commonly used hooks include useContext(), useRef(), and useMemo().

Objects in JavaScript are data structures that store key-value pairs.

• Objects are created using curly braces {}

• Keys are strings, values can be any data type

• Access values using dot notation or bracket notation

• Objects can contain functions as values