FREE React Javascript Questions and Answers

Which command should be used to start a new React project?

npm create-react-app my-app

npx create-react-app my-app

npm create-react-app my-app

npx create-react-app my-app

Correct! Wrong!

Which command is used to launch the local development server for React?

npm build

npm start

npm run

npm run dev

Correct! Wrong!

Which of the following is NOT a rule for React Hooks?

Hooks can only be called in inside React function components

Hooks cannot be conditional

Hooks can be called in class or function components

Hooks can only be called at the top level of a component

Correct! Wrong!

What is the children prop?

A property that lets you pass data to child components

A property that lets you add child values to state

A property that lets you nest components in other components

A property that lets you set an object as a property

Correct! Wrong!

What does the command's reference to "my-app" mean?

npx create-react-app my-app

The location where you wish to put your app

What kind of software you want to develop

The brand of a current app

The title that you want to give your new app

Correct! Wrong!

When rendering a list using the JavaScript map() method, what is required for each element rendered?

Index

Key

Data

Correct! Wrong!

React components must start with a capital letter

False

True

Correct! Wrong!

FREE React Javascript Questions and Answers

Which command should be used to start a new React project?

Which command is used to launch the local development server for React?

Which of the following is NOT a rule for React Hooks?

What is the children prop?

What does the command's reference to "my-app" mean?

npx create-react-app my-app

When rendering a list using the JavaScript map() method, what is required for each element rendered?

React components must start with a capital letter

FREE Introducing React Hooks Questions and Answers

FREE Building React App Questions and Answers

Which command should be used to start a new React project?

Which command is used to launch the local development server for React?

Which of the following is NOT a rule for React Hooks?

What is the children prop?

What does the command's reference to "my-app" mean? npx create-react-app my-app

When rendering a list using the JavaScript map() method, what is required for each element rendered?

React components must start with a capital letter

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What does the command's reference to "my-app" mean?

npx create-react-app my-app

Premium Tests $49/mo
FREE April-2024