Having worked on a similar project for clojurescript (1), I've found that the main challenge to using this "array spoofing" technique widely is interop with oth

Having worked on a similar project for clojurescript (1), I've found that the main challenge to using this "array spoofing" technique widely is interop with other libraries. For example, angular.js internally has inconsistent ways of validating an object is an array, sometimes bottoming out in Object.toString and other times instanceof Array. Many libraries behave similarly, and so array.js objects will not behave as expected if handed off. On the other hand, interop with D3.js has been ideal as it generally assumes that any non function parameter is an array, so there I"ve had more success and would expect array.js to similarly work well. (1) https://github.com/dribnet/strokes https://github.com/dribnet/strokes