Yes, that is how that works

As someone hoping to become a front end developer I’ll just say this: stackoverflow can only get you so far, creating something as complicated as a website or an interactive app without actually knowing what you’re doing and making it from little bits and pieces of whatever you find on stack overflow is gonna get you a really shitty website not to mention the fact that stack overflow doesn’t have the code for everything. Tweaking the code might change it or might completely break it- good luck trying to debug several lines of code!