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FREE React Javascript Questions and Answers
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Which command should be used to start a new React project?
npx create-react-app my-app
npm create-react-app my-app
npx create-react-app my-app
npm create-react-app my-app
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React components must start with a capital letter
True
False
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Which command is used to launch the local development server for React?
npm start
npm run dev
npm build
npm run
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When rendering a list using the JavaScript map() method, what is required for each element rendered?
Index
Key
ID
Data
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What does the command's reference to "my-app" mean?
npx create-react-app my-app
What kind of software you want to develop
The title that you want to give your new app
The location where you wish to put your app
The brand of a current app
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Which of the following is NOT a rule for React Hooks?
Hooks cannot be conditional
Hooks can be called in class or function components
Hooks can only be called in inside React function components
Hooks can only be called at the top level of a component
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What is the children prop?
A property that lets you add child values to state
A property that lets you pass data to child components
A property that lets you set an object as a property
A property that lets you nest components in other components
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