React & JS - Day 5 - KEC

const arr = [1,2,3]

const {a, b, c} = arr

console.log(a)

• 1

• undefined

• null

• Error

How can you destructure an object in JavaScript?

• const { name, age } = { person };

• const { name, age } = person;

• const { name: name, age: age } = person;

• const [name, age] = person;

Which React Hook is used to perform side effects in a functional component?

• useState

• useSideEffect

• useEffect

• useFetch

How can you navigate between different pages in a React application?

• Use Redux for navigation between different pages in a React application.

• Use Angular for navigation between different pages in a React application.

• Use React Router for navigation between different pages in a React application.

• Use jQuery for navigation between different pages in a React application.

What is Redux used for?

• Redux is used for passing data through the component tree without having to pass props down manually at every level.

• Redux is used for creating animations

• Redux is used for managing routes

• Redux is used for handling HTTP requests

What array method is used to remove the first element from an array?

• pop()

• shift()

• slice()

• unshift()

const arr = [1,2,3]

const [a: x, b, c] = arr

console.log(x)

• 1

• undefined

• null

• Error

What are the benefits of using Redux toolkit over traditional Redux?

• Redux Toolkit increases boilerplate code

• Redux Toolkit makes Redux more complex

• Redux Toolkit simplifies Redux setup and reduces boilerplate code.

• Redux Toolkit is not compatible with React

What array method is used to check if all elements in an array pass a certain condition?

• verifyAll()

• every()

• checkAll()

• all()

Which React Hook is used to fetch data from an API in a functional component?

• fetchData

• useAPI

• useFetch

• useEffect