Can you use useState more than once in a React component?

Yes, it can be used multiple times in a component

No, it can only be used once per component

Can only be used more than once in class components

Depends on the size of the component

Can you use any value to initialize the state of the useState hook?

No, you can only use values of type string

No, you can only use numeric values

What is the purpose of React Router DOM?

It is used for routing in React applications

It helps in creating user interfaces.

It is used for data fetching in React applications.

It is used for managing state in React applications.

What is the best way to navigate to a new route using React Router?

By using the <Link> component to create a clickable link to the new route.

By manually updating the URL in the address bar.

By using the history object to push a new route.

By using the <Redirect> component to redirect to the new route.

What is the correct implementation of a Route using React Router DOM?

How can you pass props to a component in React?

By passing them as attributes in the component tag

By using the <props> tag within the component

By using the <passProps> attribute within the component

By using the <props> attribute within the component

How do you install React Router DOM?

Using the command "npm or pnpm install react-router-dom"

Downloading it from the official website

Installing it from the React devtools

Which of the following statements is true about using '?' for conditional rendering in React?

You can use it to conditionally render components or simple expressions

You can only use it to render simple expressions, not components

You can only use it to render components, not simple expressions

You cannot use it for conditional rendering in React

How can you use the ? operator to conditionally render one of two components in React?

condition ? <Component1 /> : <Component2 />

condition && <Component1 /> || <Component2 />

What is the purpose of useContext hook in React?

To use React's context API to pass data between components

To use React's Redux API to manage state in an application

To use React's Router API to handle navigation in an application

To use React's lifecycle methods in functional components

React Initial Review

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19 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is React?

A programming language used for web development

A javascript library for building user interfaces

A framework for creating mobile applications

A database management system

DRAG AND DROP QUESTION

1 min • 1 pt

What is the command to start a react application?
(a)

pnpm create vite

yarn react-app

npm install react-app

npm react-app

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is JSX in React?

Is a JavaScript syntax extension that allows us to mix JS and HTML (XML)

A library of pre-written JavaScript code

A type of JavaScript syntax used to define React components

A programming language used to create web applications

DRAG AND DROP QUESTION

1 min • 1 pt

Which of the following is a way to handle data in React.js?
(a)

State & Props

Services & Components

State & CSS

State & Services

DRAG AND DROP QUESTION

1 min • 1 pt

What is the method used in the main.tsx page in react to render the elements on the web page?
(a)

render()

createElement()

compile()

mount()

DRAG AND DROP QUESTION

1 min • 1 pt

What is the purpose of the useState hook in React?
(a)

To update the state of a component

To handle user events

To access data from an external API

To render elements on the page

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What will the useState function return?

A string representing the current state of the component

An object containing the current state and a function to update the state

A function used to update the state

The current state value and a function to update the state

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React Initial Review

What is React?

What is the command to start a react application? (a)

What is JSX in React?

Which of the following is a way to handle data in React.js? (a)

What is the method used in the main.tsx page in react to render the elements on the web page? (a)

What is the purpose of the useState hook in React? (a)

What will the useState function return?

What's the magic formula for using the useState hook? (a)

Can you use useState more than once in a React component?

Can you use any value to initialize the state of the useState hook?

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

What is the command to start a react application?
(a)

Which of the following is a way to handle data in React.js?
(a)

What is the method used in the main.tsx page in react to render the elements on the web page?
(a)

What is the purpose of the useState hook in React?
(a)

What's the magic formula for using the useState hook?
(a)