NODE-DOCUMENT-DIFFER-DEEPDIFF

  var Differ = require('node-document-differ-deepdiff');
 
  var differ = new Differ();
 
  var a = {foo: 1, bar: "baz"},
      b = {foo: 2, baz: "qux"};
 
  differ.diff(a, b, function(err, diff, identical) {
    console.log("Equal: %s  \nDiff:\n", identical, diff);
  });