Are there sites with ready-made snippets and plugins for web development?

Question

Mathematics

I am looking for a database of ready-made elements or scripts for performing certain effects on the site, for example, as on the site:
https://pcvector.net/
Please tell me similar valuable resources from which you can decide on the name of different effects, with their execution in demo mode and the code of these effects or modules.

Answer 1

nxt = [((0, 0, 0),)]
while nxt:
    cur, nxt = nxt, []
    for path in cur:
        x, y, z = path[-1]
        targets = [(a, b, c) for a, b, c in ((x + 3, y, z + 2),
                                             (x, y + 3, z + 1),
                                             (x + 1, y + 2, z))
                   if a * a + b * b + c * c < 125]
        if targets:
            for abc in targets:
                nxt.append(path + (abc,))
        else:
            print(*[(u - a, v - b, w - c) for (a, b, c), (u, v, w)
                    in zip(path, path[1:])])

Answer 2

jsfiddle, codepen