3 ms·

But lua isn't lacking them, <for in do> is for generators, and if you want iterators you can make those as well.

• bmitc 2y ago
  Do you know if Lua supports type annotations or gradual typing? I use those heavily when using dynamically typed languages.
  • QuaternionsBhop 2y ago
    No, Lua does not, but check out Roblox's Luau which is a gradually typed extension of Lua.
    • nmz 2y ago
      I'd recommend teal because luau is not really lua.
  • nmz 2y ago
    It does not. The most viable solution is transpilation, teal is the most recent candidate. You can have a hack of sorts using a schema and tables as in local schema = { a = "number", b="string" } -- key = "type" local data, link = {a=4, b="default value"}, {} -- link -> data, link itself is always empty local tbl = setmetatable(link, { __index = data , __newindex = function (t,k,v) if schema[k] and type(v)==schema[k] then data[k] = v return true end error"type does not match schema" end }) tbl.b = 5 -- this will error because its the wrong type There are certain solutions you can do with functions, lsp is also really good at telling you when you went wrong.