Add to Cart Functionality

This video tutorial explains how to implement an 'add to cart' action in a React application using Redux. It covers the use of useEffect to dispatch actions when a user navigates to the cart page, extracting product IDs and quantities from the URL, and managing state with useSelector. The tutorial also demonstrates how to handle local storage to persist cart items across sessions.

What is the primary purpose of the useEffect hook in the context of the 'add to cart' action?

• To update the component's local state

• To handle form submissions

• To fetch data from an API

• To dispatch actions when the component mounts

How is the product ID extracted from the URL?

• Using document.URL

• Using window.location

• Using match.params

• Using location.search

What is the role of location.search in the 'add to cart' functionality?

• To retrieve the query string for quantity

• To redirect the user

• To update the page title

• To find the product ID

When should the 'add to cart' action be dispatched according to the useEffect setup?

• When the component unmounts

• Whenever the page is reloaded

• Only if there is a product ID in the URL

• When the user clicks a button

What is the purpose of the useSelector hook in this context?

• To dispatch actions to the Redux store

• To select and retrieve state from the Redux store

• To update the component's local state

• To handle asynchronous operations

How are cart items ensured to persist even after a page reload?

• By using cookies

• By saving them in local storage

• By saving them in session storage

• By storing them in a database

What happens to the cart items when the browser is closed and reopened?

• They are reset to default values

• They are lost and need to be re-added

• They remain in the cart due to local storage

• They are saved in cookies