React Basics Quiz

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Questions and Answers

What is the command to create a new React app?

react-app create YOUR_APP_NAME
npm create react-app YOUR_APP_NAME
create-react-app YOUR_APP_NAME (correct)
npm create-app YOUR_APP_NAME

What naming convention does JSX use for attributes?

kebab-case
camelCase (correct)
UpperCamelCase
Snake_case

Which of the following is a requirement when wrapping multiple elements in JSX?

Using multiple class names
Defining a custom function
Implementing CSS styling
Using a single container element (correct)

What is the purpose of the data-prefix in JSX for custom attributes?

To differentiate from standard attributes (A) Signup and view all the answers

Why can app names in React no longer contain capital letters?

Due to npm naming restrictions (A) Signup and view all the answers

What is the correct syntax to run the command for creating a new React app?

create-react-app react_first_your_app_name (C) Signup and view all the answers

JSX allows the use of class as an attribute without any modifications.

False (B) Signup and view all the answers

What is used as a container element when wrapping multiple nested elements in JSX?

div Signup and view all the answers

When creating custom attributes in JSX, the convention is to use the ______ prefix.

data- Signup and view all the answers

Match each JSX attribute usage with its corresponding explanation:

className = Replaces class in JSX due to namespace conflict data-demo = Used for defining custom attributes in JSX onClick = Indicates a click event handler in JSX htmlFor = Replaces for in JSX to associate labels with inputs Signup and view all the answers

Flashcards

create-react-app

A command-line tool for quickly setting up a new React application.

JSX Attributes

Attributes used with HTML elements in JSX.