How do I check if a function exists inside a table?

Help and Feedback Scripting Support
#1

I looked at this post and I get a warning when I do what they said to do in the answer, it says.

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I am wondering if there is a way that I can get rid of this warning?

local exampleTable = {}
if exampleTable.exampleFunction then
	exampleTable.ExampleFunction()
end
#2

Can you post your script so we can better help you?

#3

I will give an example, but this is for purely knowledge not a large scale script

#4

I edited my post, does this clarify my question?

#5 
local exampleTable = {}
if typeof(exampleTable.exampleFunction) == "function" then
	exampleTable.exampleFunction()
end

typeof() will return “nil” if exampleFunction isn’t there or something else if it’s a different data type.

#6

That still gives me the same warning, thanks anyway.

#7

What does the warning say?

3030

#8

To clarify, the above code works, it just displays a warning, and if I have hundreds of those, well those warns would get annoying.

#9

It’s on the top of the post, but here it is anyway

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#10

That’s just the syntax highlighter; there shouldn’t be any error/warning at run-time.

#11

But hundreds of those, definitely gets annoying and if I have all types of those things…

#12

You should probably fix them then, just to keep your code clean. If “exampleFunction” is meant to be defined later then you could just put a placeholder value when you define “exampleTable” in order to silence the warning.

The warning is showing because in the script you are indexing a key that isn’t hard-coded in the table; it’s confusing the syntax checker.

#13

Alternatively, to silence this, you can use square brackets and use the matching name in a string into the brackets to find it.

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