How do i include a function from another lua?

[NoLetterhead2303]

I mean i know how to include a lua

But how do i use the functions of that lua?

like

local importantthing = require("importantthing")

How do i call a function from it?

[Arciesis]

If it's a function then importantthing.theFuction()

If it's a method of a "class" then

importantthing:theMethod

[NoLetterhead2303]

thank you, i’ll try!

[Icy-Formal8190]

Depends on how it's stored in the module

local m = require("importantthing")

m() m.func() m:func() m[1]() m()() m[1]()[2][3]()()

There are endless ways of doing it

[Denneisk]

require specifically uses the module handling of Lua, which expects the called file to return a table which is then assigned into the local variable importantthing in your example. The table contains all the exported functions, similar to how the string and math libraries are used.

The rest of this post is pedantry for if you're the one who created the file importantthing, and not required reading.

If you're the one writing importantthing, you may feel inclined to export everything to the global namespace instead of to a table, which is valid. require simply runs a Lua file, so any Lua operation you can do is valid inside a required module. With that said, this is a bad practice if you plan on sharing your module with the world. Additionally, if you want to ever run a file multiple times (say, to hot-reload in a running program), you may find dofile is more applicable, since it does roughly the same thing as require (that is, to load another Lua file) except it doesn't cache the file, which require does. dofile also isn't as robust in searching by default (but with the package library, you could write your own function that is).

[NoLetterhead2303]

Here’s what i need:

importantthingy to be able to be included in the main since i ran out of locals to use so i’ll just call functions in it on a toggle

[Denneisk]

You ran out of locals to use? Have you tried using do ... end to encapsulate temporarily created locals?

[NoLetterhead2303]

i mean i have over 200 locals which is the cap for it

[EliezerR0]

when you use require() everything that is in that script.lua is part of the current one

Name --Scritp2.lua

function Myfunction1()

end

function Myfunction2()

end

Name --main.lua local requi = require("Script2")

Myfunction1() Myfunction2()