Fengari table=>Object helper

Object.lua

local js = require "js"

-- Helper to copy lua table to a new JavaScript Object
-- e.g. Object{mykey="myvalue"}
local function Object(t)
	local o = js.new(js.global.Object)
	for k, v in pairs(t) do
		assert(type(k) == "string" or js.typeof(k) == "symbol", "JavaScript only has string and symbol keys")
		o[k] = v
	end
	return o
end

return {
	Object = Object;
}

This is an alternative to using js.createproxy(t, "object")

Would it possible for me to write a version of this code in JS rather than Lua? I haven't seen any examples of accessing Lua table members directly from JS - I understand I could make my JS code run the above via fengari, but that feels like I'd be crossing the language barrier an excessive number of times.

Would it possible for me to write a version of this code in JS rather than Lua?

Yes. See the fengari-interop source for how you might do so.