How to construct JS objects - where is the new operator?

[scally]

How do you call new on Javascript objects? I haven't found a workaround yet that will let me do this. I can call the object constructor but it will then tell me that I need to call the new operator:

for example:

observer = JS.global.MutationObserver do
  puts 'here'
end

results in

TypeError: Constructor requires 'new' operator (JS::Error)

[kateinoigakukun]

Currently, there is no way to call new in JavaScript. Let me put it in TODOs. (Sorry for slow reply, I missed your post 🙇)