domain bind with closure

domain_closure.js

// domain.bind with closure
var domain = require('domain');
var d = domain.create();
var f = (function() {
  var i = 0;
  return function () {
    return i++;
  };
}());

var g = d.bind(f);

console.log(g()); // 0
console.log(f()); // 1
console.log(g()); // 2
console.log(f()); // 3