Question

How to create a two dimensional (2D) array in Lua

Answer 1

arr = {}

local rows = 3
local cols = 4

for i = 1, rows do
    arr[i] = {}

    for j = 1, cols do
        arr[i][j] = 0 
    end
end

for i = 1, rows do
    for j = 1, cols do
        io.write(arr[i][j], " ")
    end
    print()
end





--[[
run:
 
0 0 0 0 
0 0 0 0 
0 0 0 0
 
--]]

 

 

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