pianosnake

//example: 
//var nestedObj = {planet: {earth: {'@continent': 'africa'}}};
//hasOwnProperties(nestedObj, 'planet.earth.@continent') //returns true
//hasOwnProperties(nestedObj, 'planet.earth.@continent', 'africa') //returns true
//hasOwnProperties(nestedObj, 'planet.earth.unicorns') //returns false

  hasOwnProperties: function(target, path, value){
      if (typeof target !== 'object' || target === null) { return false; }

      var parts = path.split('.');