Lua multiple assignment with tables

Question

This code:

function foo()
    return 1, 2, 3
end

bar = {}

bar = {a, b, c = foo()}

produces:

bar.a = nil
bar.b = nil
bar.c         


        

Answer 1

bar = {}
local abc = foo()
bar.a, bar.b, bar.c = abc, abc, abc

Simply bar.a, bar.b, bar.c = foo() will only set bar.a to foo(), the other two will be set to nil because they get set to the second and third values respectively, and you've only given one value.