[Lua] How to use SelectUnitSingle()

[therealhjrp]

Short question: the first code snippet (in JASS) works, but the second one (Lua) does not.

function selectPriest takes nothing returns nothing
    call SelectUnitSingle( gg_unit_hmpr_0000 )
endfunction

function selectPriest()
    SelectUnitSingle( gg_unit_hmpr_0000 )
end

Why?

 

[Eikonium]

I assume you are testing that in different maps, because Jass and Lua don't work in the same map at the same time.

If so, your mistake probably is that you have used the exact same gg-variable, although the numerical suffix (0000 in your case) is map-dependent.
To be sure about the gg-variable name, select the unit via any GUI- action and see what name you get there.
Setting a unit variable is the easiest way to do that.

It's also worth noting that the gg_unit variables only exist after such a GUI- select, at least in Lua- mode (not sure about Jass).
So make sure you do that in both maps before testing your function.