jQuery/JavaScript JSON object comparison

Question

Is it possible to compare 2 sets of json objects for a difference? What I have is a script thats polling for JSON object via jquery $post(). What I want to do is take the ob

Answer 1

var objectsAreEqual = function(obj1, x){
  var MAX_DEPTH = 10;
  var testEq = function(obj1, x, depth){
    if(depth < MAX_DEPTH){
      for (var p in obj1) {
          if(typeof(obj1[p]) !== typeof(x[p])) return false;
          if((obj1[p]===null) !== (x[p]===null)) return false;
          switch (typeof(obj1[p])) {
              case 'undefined':
                  if (typeof(x[p]) != 'undefined') return false;
                  break;
              case 'object':
                  if(obj1[p]!==null && x[p]!==null && (obj1[p].constructor.toString() !== x[p].constructor.toString() || !testEq(obj1[p], x[p], depth + 1))) return false;
                  break;
              case 'function':
                  if (p != 'equals' && obj1[p].toString() != x[p].toString()) return false;
                  break;
              default:
                  if (obj1[p] !== x[p]) return false;
          }
      }
    }
    return true;
  };
  // this is a little ugly, but the algorithm above fails the following: testEq([[1,2],[]], [[1,2],[1,3]], 0)
  return testEq(obj1, x, 0) && testEq(x, obj1, 0); 

};