Create a product listing page with Add to Cart button on each product. Create a functional Cart page with the Discount Code box and Checkout button. Create a checkout page. Add a form with all the required fields and validations and on submitting the form, use AJAX to display the "Order Placed" text..
$ git clone https://github.com/whoismayank/boat-lifestyle-ecom-firebase.git
$ cd boat-lifestyle-ecom-firebase
$ Open folder with VScode
$ Install VScode extension: `Live Server`
$ Open index.html file in text-editor
$ Click on Go live button on Vscode editor
$ App will be opned directly into web-browser