function baseIsEqualDeep()

in source/web_site/js/connectCCP.js [12418:12474]
50 lines of code
22 McCabe index (conditional complexity)

function baseIsEqualDeep(object, other, equalFunc, customizer, isWhere, stackA, stackB) {
  var objIsArr = isArray(object),
      othIsArr = isArray(other),
      objTag = arrayTag,
      othTag = arrayTag;

  if (!objIsArr) {
    objTag = objToString.call(object);
    if (objTag == argsTag) {
      objTag = objectTag;
    } else if (objTag != objectTag) {
      objIsArr = isTypedArray(object);
    }
  }
  if (!othIsArr) {
    othTag = objToString.call(other);
    if (othTag == argsTag) {
      othTag = objectTag;
    } else if (othTag != objectTag) {
      othIsArr = isTypedArray(other);
    }
  }
  var objIsObj = objTag == objectTag,
      othIsObj = othTag == objectTag,
      isSameTag = objTag == othTag;

  if (isSameTag && !(objIsArr || objIsObj)) {
    return equalByTag(object, other, objTag);
  }
  var valWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
      othWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');

  if (valWrapped || othWrapped) {
    return equalFunc(valWrapped ? object.value() : object, othWrapped ? other.value() : other, customizer, isWhere, stackA, stackB);
  }
  if (!isSameTag) {
    return false;
  }
  stackA || (stackA = []);
  stackB || (stackB = []);

  var length = stackA.length;
  while (length--) {
    if (stackA[length] == object) {
      return stackB[length] == other;
    }
  }
  stackA.push(object);
  stackB.push(other);

  var result = (objIsArr ? equalArrays : equalObjects)(object, other, equalFunc, customizer, isWhere, stackA, stackB);

  stackA.pop();
  stackB.pop();

  return result;
}