Unrelated question, the code on this page https://system.netsuite.com/app/help/helpcenter.nl?fid=section_157072957990.html have

const

and

let

, I thought NS doesn't accept anything after ES5

This is SuiteScript 2.1, it supports ES.Next

I didn't know that, is that new?

It's been for a while, couple years I believe

I am living under a rock. Thanks very much ❤️

Though I still don't understand why they declare

let sublist

I would use const here as well

I have no idea. Maybe the developer didn't feel it like a constant because it calls some functions 🙂

I've seen some developers use

const

for things that cannot change and

let

for things that can change. The distinction being that we can change something without reassigning the variable which

const

prevents. Technically I can use

const

to create an empty array/object and still add elements/properties. This may not be in the spirit of

const

in the minds of some.

Certain linting rules will complain if you use

let

for a variable that is never re-assigned, even if that variable is an object or array that you modify later. Our company follows those rules, so we use

const

whenever possible, even on mutable objects and arrays.