Quantity Select and Add to Cart Button

The video tutorial guides viewers through implementing a quantity selector for products in a React application. It covers setting up component state using useState, conditionally rendering elements based on stock availability, dynamically generating quantity options, and handling add-to-cart functionality with query strings. The tutorial concludes with setting up a cart screen and routing it within the application.

What is the initial value set for the quantity in the component state?

• 10

• 5

• 1

• 0

Which React hook is used to manage the component state for quantity?

• useEffect

• useState

• useReducer

• useContext

What condition is checked before displaying the quantity selection?

• If the product is new

• If the product is in stock

• If the product is on sale

• If the product is discontinued

How is the quantity selection implemented in the form control?

• As a select box

• As a checkbox

• As a text input

• As a radio button

What JavaScript feature is used to create an array of quantity options?

• Array.filter()

• Array.map()

• Array.forEach()

• Array.reduce()

Why is the key for each option set to X + 1?

• To ensure unique keys

• To follow alphabetical order

• To avoid starting from zero

• To match the product ID

What is the purpose of the add to cart handler?

• To update the product price

• To remove items from the cart

• To apply discounts

• To redirect to the cart page with parameters

What parameters are included in the URL when redirecting to the cart page?

• Product name and price

• Product ID and quantity

• Product ID and price

• Product name and quantity

What is the purpose of making the ID optional in the cart route?

• To allow multiple products

• To enable cart access without a specific product

• To support different currencies

• To apply discounts automatically

What will be the focus of the next video in the series?

• Payment gateway integration

• User authentication

• Cart reducer and actions

• Product reviews