How can I use javascript functions defined in a different file in Suitescript? Can I use relative file path references?

I use relative path references all the time

Ah nice. Can I put it all in its own folder in the Suitescript folder?

Yes - in fact as a best practice I root all my SuiteScript 2.x files under a single root folder (and subfolders if needed). In my case I name the folder

SS2

and put all SuiteScript 2.x stuff there, to distinguish clearly from any old SuiteScript 1.0 that might live elsewhere

And this is all from on top of the define?

I use TypeScript so write my code using modern JS

export

import

syntax (i.e. I don't hand write a

define()

function at all)

Same here, but here’s a sample of the JS

define(["../folderName/functionLibrary", "N/log", "N/runtime", "N/xml"], function (functionLibrary, log, runtime, xml) {
...
}

this has the benefit of it being impossible for me to mess up the define dependencies and the variables that get assigned to said dependencies 🙂

@Steven how would I use my own external functions?

Yeah I write the functions in a library (note I also write in Typescript so I export them) then I can import the library and call something like

functionLibrary.functionOne()

I don't know typescript unfortunately.

Never too late to learn 🙂 It’s just javascript with rules really

Maybe after my company completes their implementation and I have time to breathe.

That's fair haha

You can use the typings in regular JS as well

One thing to note - if the JS file is in the same dir, it looks like you have to prepend ./ before the filename in the define statement