What are the best current options for ReScript immutable / shared memory data structures?
In particular looking for:
- arrays
- lists
- maps.
Please feel free to list multiple options if there are trade-offs from a time/memory perspective!
What are the best current options for ReScript immutable / shared memory data structures?
In particular looking for:
Please feel free to list multiple options if there are trade-offs from a time/memory perspective!
Belt provides immutable sets and maps: Belt | ReScript API
For arrays, the recommendation is to use them as-is and not introduce further complexity on top of JavaScript arrays. It’s also easy to write a simple immutable (copying) wrapper on top of mutable arrays if desired.
For lists, the recommendation is to prefer arrays over lists. But the built-in list<'a>
type is already immutable and comes with the List
module of support functions.