table.unpack usage

[skyraker]

local test = {1,2,3,4}
a,b,c,d = table.unpack(test)

Why doesn't this work?

[Halja]

table.upack was added in LUA 5.2?
Unpack alone will work to multi-assign variables from an array.

local test = {1,2,3,4}
a,b,c,d = unpack(test)
d( string.format("%d : %d : %d : %d",a,b,c,d ))

[skyraker]

Guess I didn't realize it wasn't using 5.2. Unpack does work.

[Karner]

GetUnitAvARank(string unitTag)
Returns: integer rank, integer subRank

What about this for example?

a,b = unpack(GetUnitAvARank("player"))?

[Errc]

Originally Posted by Karner GetUnitAvARank(string unitTag) Returns: integer rank, integer subRank What about this for example? a,b = unpack(GetUnitAvARank("player"))?

GetUnitAvARank does not return a table, so no need to unpack it.

Can just do this.
a,b = GetUnitAvARank("player")

Or you could create a table that contains the returned values, and then unpack that. But that is wasteful.
a,b = unpack({GetUnitAvARank("player")})

{GetUnitAvARank("player")} creates a table such like { [1] = rank, [2] = subRank }

[Karner]

Originally Posted by Errc GetUnitAvARank does not return a table, so no need to unpack it. Can just do this. a,b = GetUnitAvARank("player")

I get an error with this. "Function expected instead of nil stack straceback". Working on the table now

Fixed the error; had the function spelt wrong

[Errc]

Originally Posted by Karner I get an error with this. "Function expected instead of nil stack straceback". Working on the table now

Might not be a function still available in-game. Could of been part of the gutting prior to launch.

[Karner]

Originally Posted by Errc Might not be a function still available in-game. Could of been part of the gutting prior to launch.

Thanks for the help Errc; It's really helped a lot.