Tables are pretty cool! https://www.pyret.org/docs/latest/tables.html
On Fri, 18 Jan 2019 at 22:22, <jackhfi...@gmail.com> wrote: > When it comes to collections and data structures, what would you all like > to see in Racket2? New APIs? Changes to existing APIs? Whole new paradigms? > Something else? > > I've got my own wishlist and maybe someday I'll implement a few things on > it as packages, but I'm curious what everyone else thinks. For some > examples, here's a few things on my list: > > > - Distinct data types for pairs and lists, and more intuitive names for > the pair APIs (so `pair?` and `list?` would be mutually exclusive > predicates and you'd make and access pairs with `(pair 1 2)`, `(pair-first > p)`, and `(pair-second p)`. > > - A separation between using lists as homogeneous collections and using > lists as fixed-size tuples. So there'd be a separate `tuple?` data type > that's structurally equivalent to a list but meant to be used differently. > For example, `(list/c number?)` would mean a list of many numbers, but > `(tuple/c number?)` would mean a tuple of size 1 containing a number. > > - Something better and simpler than structs. Throw out mutable fields, > subtyping, struct type properties, etc. Just the basics: a tuple-like type > with named fields and a constructor that can enforce invariants on all > instances. > > - Lots more stuff. > > -- > You received this message because you are subscribed to the Google Groups > "Racket Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to racket-users+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- ---- -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
