I am trying to test turnserver in the run kit but this error appears everytime .Would you please guide me which thing is going wrong?

I am trying to test turnserver in the run kit but this error appears everytime .Would you please guide me which thing is going wrong?

It seems like you’re not saving the result of the require() call. Try this instead:

var stunturncheck = require("stunturncheck");

See also the demo on the NPM page:

https://www.npmjs.com/package/stunturncheck