Manuale_LUA

Assignment

Lua allows multiple assignment. The syntax for assignment defines a list of variables on the left side and a list of expressions on the right side:

VARLIST = EXPLIST
VAR { , VAR } = EXP { , EXP }

Lua first evaluates all values on the right side and then makes the assignments. Thus,mul exchange two or more values:

VAR1, VAR2  =  VAR2 , VAR1

If the two lists have different lengths, an adjustment is made before assignment.