Return Values

return sends a computed value back to the caller.

return_values.lua

local width = 

local function area(side)
  return side * side
end

local result = area(width)

print("width=" .. width)
print("area=" .. result)

local width = 

local function area(side)
  return side * side
end

local result = area(width)

print("width=" .. width)
print("area=" .. result)

local width = 

local function area(side)
  return side * side
end

local result = area(width)

print("width=" .. width)
print("area=" .. result)

computed result Store the returned value when later code needs to use or print it.