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Creating a function with an unknown number of arguments; arg == nil?
I want to create a customizedprint() function that would print the arguments to the console and then also put them in a StringValue.
I read an article on how to do that. My code is as the following:
01 | function printConsole(...) |
02 | coroutine.wrap(function(arg) |
03 | local toPrint="" |
04 | print(arg) |
05 | for _,v in pairs(arg) do |
06 | toPrint=toPrint..tostring(v) |
07 | end |
08 | print(toPrint) |
09 | workspace.ToPrint.Value=workspace.ToPrint.Value..toPrint.."\n" |
10 | end)(arg) |
11 | end |
12 | print("Hi", "there!") |
At the for loop it breaks because arg is nil, not a table.
At print(arg) it says: "Hi" so it thinks arg is a string.
0
As said, in that LUA book, some things may not be able to do in Roblox. RolandStudio 115 — 11y
0
Actually, no. ROBLOX does not modify that sort of implementation, that would be insane. The examples in PIL don't work in real, standalone Lua installations, either, which confused me the other day. BlueTaslem 18071 — 11y
1 answer
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2
There is no need for coroutine and you pass a nil value anyway. Here:
01 | function printConsole(...) |
02 | local arg = {...} |
03 | local toPrint="" |
04 | print(arg) |
05 | for _,v in pairs(arg) do |
06 | toPrint=toPrint..tostring(v) |
07 | end |
08 | print(toPrint) |
09 | workspace.ToPrint.Value=workspace.ToPrint.Value..toPrint.."\n" |
10 | end |
11 | print("Hi", "there!") |
FYI, roblox allows you to redefine 'print' function itself, so you can do that.