Syntax
-- math_helpers.lua
local M = {}
return M
local helpers = require("math_helpers")Examples
Exporting a module function
A small, runnable example of this syntax.
-- math_helpers.lua
local M = {}
function M.double(value)
return value * 2
end
return M
-- main.lua
local helpers = require("math_helpers")
print(helpers.double(4))Best practices
- Return one clear module table and avoid mutable module-level state unless it is deliberately part of the module’s contract.
- Keep examples small while learning, then combine the idea with a real project.
At a glance
- Purpose
- Lightweight scripting and embedding
- File extension
- .lua
- Runs in
- Lua interpreter or a host application
- Usually used with
- Host APIs and Lua modules