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React Component Syntax Quiz

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Questions and Answers

When defining React components, which type of function is considered a legacy alternative?

Generator functions

Async functions

Traditional functions (correct)

Arrow functions

What type of element does the FriendlyGreeting component create?

Unordered list

Blockquote with inline styles

Heading with custom styles

Paragraph with built-in styles (correct)

How do we render a React component?

Using class keyword

Using createElement function

Using renderComponent method

Using createRoot method (correct)

What is considered a legacy alternative for defining components in modern React applications?

<div> tag</div> Signup and view all the answers

In addition to traditional functions, what other syntax is supported for writing functions in modern JavaScript?

'arrow' functions Signup and view all the answers

What are props in React?

Data passed to components for customizations Signup and view all the answers

How are props similar to in React?

Arguments to a function Signup and view all the answers

What is the purpose of using expression slots in React?

To customize component content based on the data Signup and view all the answers

Why can props be a common stumbling block for learners?

It takes time for the concept to 'click' Signup and view all the answers

In what way are props similar to function arguments?

They allow passing data for customization Signup and view all the answers

Study Notes

Defining React Components

In modern React applications, a class component is considered a legacy alternative for defining components.

FriendlyGreeting Component

The FriendlyGreeting component creates a JSX element.

Rendering a React Component

A React component is rendered using the ReactDOM.render() method.

Defining Functions in Modern JavaScript

In modern JavaScript, in addition to traditional functions, arrow function syntax is also supported for writing functions.

Props in React

Props (short for "properties") are read-only values passed from a parent component to a child component in React.
Props are similar to function arguments, allowing components to be reused with different values.
Props can be a common stumbling block for learners due to their immutability.