What does return do?

[sintwins]

I saw it in a lua file and wondered what it did. Can anyone help? Thanks

PS: Sorry for all of the threads, but I'm trying to learn :)

[NullPoint]

You should read up on Lua instead of asking lots of questions on the forums.

Try reading the [b][url=http://wiki.garrysmod.com/?title=Lua_Tutorial_Series]Lua tutorial series [img]http://wiki.garrysmod.com/favicon.ico[/img][/url][/b].

[editline]05:41PM[/editline]

Some other useful links:

[url=http://www.lua.org/manual/5.1/]Lua 5.1 Reference Manual[/url]
[url=http://www.lua.org/pil/]PIL[/url]

[sintwins]

I read all of the lua syntax tutorials and some of the others on there, but they didn't include some things and I can't find out about them anywhere else :)

[Freakie]

For what I know, return is a function for lua files to return a server or clientside information to the script. I'm not sure how to describe it, though.

[NullPoint]

Return breaks from the current function and returns to where the function was called. Any values/variables listed after the return get returned as well, being stored in variables listed before the function call.

[lua]function func()
return 1, 2, 3
end

local a, b, c = func()
print(a, b, c) -- output: 1 2 3
[/lua]

[disseminate]

Basically return is communicating from function to where it's called.

Eg.

[lua]function aFunc()
return "Hi";
end

Msg( aFunc() );
[/lua]

Would print "Hi" to the console. return is used in some garry-defined functions, eg. here's math.Round():

[lua]
function math.Round( i )
i = i or 0
return math.floor( i + 0.5 )
end
[/lua]

It also prematurely ends a function. eg:

[lua]
function aFunc()
return;
Msg( "This will not be printed" );
end[/lua]

[sintwins]

Hmm still not quite sure what you mean, but thanks.