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JavaScript

Crystal Vesely
Crystal Vesely
14,500 Points

Trying to comprehend what is a web app.

I am just now learning the basics of a database and the use of Express. I thought I knew what a web app is, but I’m now realizing that I’m completely wrong. From my research, a web app is similar to what I would’ve considered a website, but a web app interacts with a client. Would it be reasonable to assume that any website that uses a database would be considered a web app? And if so, everytime I want to integrate a database, do I have to design the entire website as a web app or can I use html, css, front-end JavaScript to code the webpages, and then integrate a portion of the site as a web app?

1 Answer

Travis Alstrand
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Travis Alstrand
Treehouse Project Reviewer

I believe you're on the right track!

I did some searching / querying as well and found the following. (It's something that always eluded me too 😬)

Web Apps vs. Websites: The key difference is interactivity. While a traditional website delivers static content (HTML, CSS, images, etc.) to users, a web app typically includes more dynamic, interactive elements that respond to user input and often communicate with a database on the server side.

Database Integration: If a website uses a database, it’s commonly because it has dynamic content or user data to manage (think user accounts, posts, or product details). This data is stored and retrieved from a database, making it an interactive web app in some sense.

Combining Static and Dynamic Content: You don't have to design the entire site as a full-fledged web app if only part of it needs interactivity. You can still code the main pages with HTML, CSS, and front-end JavaScript. Then, integrate dynamic features or database interactions in specific areas where needed. Express can handle the backend routes for those parts, and front-end JavaScript (or even AJAX calls) can communicate with your Express server to fetch data without reloading the entire page.