AWS, JavaScript, React - Deploy Web Apps on the Cloud - Styling the Store

This video tutorial covers how to use the Fetch API to request data from a JSON server and display it on a webpage using React. It emphasizes the importance of using the key property in React when dynamically creating elements. The lesson then shifts to styling an e-commerce store layout using CSS, including a header, footer, and main content area. The tutorial also addresses common React issues, such as ensuring JSX expressions have a single parent element, and demonstrates how to use React.Fragment to resolve these issues. Finally, it outlines plans for further API integration to dynamically load products based on selected categories.

What is the purpose of the key property in React when creating elements dynamically?

• To make the elements draggable

• To ensure each element has a unique identifier

• To style the elements

• To bind event listeners to the elements

Why is it important to have an empty dependency array in a useEffect hook when making a REST API call?

• To make the API call asynchronous

• To prevent the API call from being made

• To allow the API call to be made multiple times

• To ensure the API call is made only once when the page loads

What is a common mistake in JSX that can cause a red squiggly line error?

• Using multiple parent elements without a wrapper

• Using inline styles

• Forgetting to import React

• Using single quotes instead of double quotes

What is the purpose of using React.Fragment in a React component?

• To handle API requests

• To manage component state

• To apply global styles

• To wrap multiple elements without adding extra nodes to the DOM

What happens when you click on a category name in the React application described?

• The category name changes color

• A REST API call is made to fetch products for that category

• A new category is added

• The category is deleted