Javascript has standard runtime, that you can use in both browser and node.js (and any other place), which includes Array.forEach and all other high-level stuff

Javascript has standard runtime, that you can use in both browser and node.js (and any other place), which includes Array.forEach and all other high-level stuff. Candor doesn't have this, and thus there're no need to maintain it. Embedder is a project that's using VM to add scripting. In case of javascript, embedder is node.js, browser or even couchdb. In case of Candor - it's a candor.io (so far).