using System;

using NUglify;

public class Program

{

    public static void Main()

    {

        var output = Uglify.Js(@"(function() {

  const opts = { environment: 'dev' }

  const { environment = 'prod' } = opts;

  // This should output 'dev'

  console.log(environment)

})()");

        Console.WriteLine(output);

    }

}