Question

Is there any performance implications if I do either of these:

def do_something(user, article)
...
end

versus

def do_something(user_id, article_id)
  ..
end

I prefer passing objects as I might need other attributes down the road.

Answer 1

Yes

Both method calls will take about the same amount of time.

(It’s good to be aware of performance consequences and you asked a reasonable question, but even so, the standard disclaimer¹ about early optimization technically applies.)

---

^{1.
First, make program work.
Then, profile.
Finally, and maybe, optimize.
Donald Knuth said:
We should forget about small
efficiencies, say about 97% of the
time: premature optimization is the
root of all evil.}