function equalArrays(array, other, equalFunc, customizer, bitmask, stack) {
	  var index = -1,
	      isPartial = bitmask & PARTIAL_COMPARE_FLAG,
	      isUnordered = bitmask & UNORDERED_COMPARE_FLAG,
	      arrLength = array.length,
	      othLength = other.length;

	  if (arrLength != othLength && !(isPartial && othLength > arrLength)) {
	    return false;
	  }
	  // Assume cyclic values are equal.
	  var stacked = stack.get(array);
	  if (stacked) {
	    return stacked == other;
	  }
	  var result = true;
	  stack.set(array, other);

	  // Ignore non-index properties.
	  while (++index < arrLength) {
	    var arrValue = array[index],
	        othValue = other[index];

	    if (customizer) {
	      var compared = isPartial
	        ? customizer(othValue, arrValue, index, other, array, stack)
	        : customizer(arrValue, othValue, index, array, other, stack);
	    }
	    if (compared !== undefined) {
	      if (compared) {
	        continue;
	      }
	      result = false;
	      break;
	    }
	    // Recursively compare arrays (susceptible to call stack limits).
	    if (isUnordered) {
	      if (!arraySome(other, function(othValue) {
	            return arrValue === othValue || equalFunc(arrValue, othValue, customizer, bitmask, stack);
	          })) {
	        result = false;
	        break;
	      }
	    } else if (!(arrValue === othValue || equalFunc(arrValue, othValue, customizer, bitmask, stack))) {
	      result = false;
	      break;
	    }
	  }
	  stack['delete'](array);
	  return result;
	}
A specialized version of `baseIsEqualDeep` for arrays with support for
partial deep comparisons.

@private
@param {Array} array The array to compare.
@param {Array} other The other array to compare.
@param {Function} equalFunc The function to determine equivalents of values.
@param {Function} customizer The function to customize comparisons.
@param {number} bitmask The bitmask of comparison flags. See `baseIsEqual` for more details.
@param {Object} stack Tracks traversed `array` and `other` objects.
@returns {boolean} Returns `true` if the arrays are equivalent, else `false`.