Compare javascript objects and output property name and value of different ones. Usefull for unit testing, property detection.

js-object-comparer.js

      var compareKeys = function(obj, obj2){
        for(var key in obj){
          var _obj = obj[key];
          var _obj2 = obj2[key];

          if(!_obj){
            if(_obj2){
              console.log("%s: %s => %s",
                key, _obj, _obj2);
            }

            continue;
          }


          var isObject = _obj !== null
            && typeof _obj === 'object';

          if (isObject){
            compareKeys(_obj, _obj2);
          } else {
            var equals = _obj == _obj2;

            if(!equals){
              console.log("%s: %s => %s",
                key, _obj, _obj2);
            }
          }

        }
      };