How would I go about passing a custom argument when calling a function that returns no default argument

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#1

I’m currently writing a fairly simple script which controls a vote system.

I’m not actually having a problem with the script itself, but I want to try and make this script smaller by
passing my own argument from an event that has no default argument

Example of what I mean:

function starClicked(star)
	print(star)
end

stars.Star1.MouseButton1Click:Connect(starClicked(stars.Star1.Name) --[[I want this to pass to the above function, but I can't seem to get that to happen.]])

Any help on getting something like that to work would be fantastic as it would help me further optimize any script I make as I’ve had this issue before but I countered it with longer coding. Thanks :smiley:

#2

What you’re looking for is an anonymous function.

stars.Star1.MouseButton1Click:Connect(function()
    print(stars.Star1.Name)
end)
2 Likes
#3

That’s exactly what I’m trying to avoid so I can shorten scripts for optimization reasons.
I made optimizing my code a goal some time back as some of my previous work isn’t very optimized, and I ran into this issue.

If there’s any workaround, I would appreciate it!

Basically I’m trying to tie a few buttons to one function that also knows which button was clicked via an argument.

#4

There is no alternative that would be more optimal than an anonymous function. If there was, it’d be a very very minute difference that wouldn’t be noticable.

4 Likes
#5

Alright, thanks for clarifying this to me.

I feel like this feature should be added, but I don’t know how this could be added by ROBLOX.

Again, thank you for clarifying this.

#6

Here is an alternative suggestion that you may find makes your code a little cleaner if you are repeating this kind of thing for various objects:

local function hookButton(button)
    return button.MouseButton1Click:Connect(function()
        print(button.Name)
        -- event handler body
    end)
end

hookButton(button1)
hookButton(button2)
-- use return value if you may want to disconnect
17 Likes
Can I pass additional arguments with the touched event while connecting a function with multiple parameters?
#7

Lovely bit of code that you sent.

Aye this is a useful bit of code and I’ll base stuff I write around that in scenarios like mine.
Thanks for the help!

#8

I’m not sure how less code == better optimisation. Seems more like a useless micro-optimisation which has a negligible difference. I wouldn’t worry too much about shortening your code over being productive.

2 Likes
#9

I understand what you’re saying, and yes I agree it is very minor. However, this will also save time with my programming as it requires less repetitive code which seems to give me a bit of brain fog sometimes when I code, which in turn reduces my productivity drastically. Besides, every little helps, can’t hurt to micro-optimise things here and there. Each line of code takes about 1ms for Lua to read doesn’t it?