loading handlebars helpers

[vinniefalco]

I am integrating duktape + handlebars.js in my C++ program and when I try to duk_peval this code I get an error on line 3:

'use strict'

module.exports = (...args) => {
  const numArgs = args.length
  if (numArgs === 3) return args[0] && args[1]
  if (numArgs < 3) throw new Error('{{and}} helper expects at least 2 arguments')
  args.pop()
  return args.every((it) => it)
}

I get that I need some modules extras/ from the repo, but I looked at the sources to duk_module_node.c and this doesn't affect the parser. Am I correct that duktape 2.7.0 cannot parse this syntax from above (specifically the module.exports = (...args))?

Or am I just confused... full disclosure I am by no means a JS expert. C++ is my primary language. So I do not understand modules that well.

Thanks for any replies!

[vinniefalco]

It seems I need ECMAScript 6 support, is this coming or here already?