function valid = isprop(varargin)

%ISPROP Returns true if the property exists.

%   V = ISPROP(H, PROP) Returns true if PROP is a property of H.

%   V is a logical array of the same size as H.  Each true element of V

%   corresponds to an element of H that has the property PROP.

%   Copyright 1988-2018 The MathWorks, Inc.

    narginchk(2,3); 

    objQueried = varargin{1}; 

    propName = varargin{2}; 

    switch nargin 

        case 2 

            try % size may be overloaded by the object and lead to error here 

                valid = false(size(objQueried)); 

            catch % return FALSE when SIZE is overloaded to not return numbers

                valid = false;

                return;

            end 

            if numel(objQueried) == 1 

                valid = hasProp(objQueried, propName); 

            else

                % Use for-loop: input may not support ARRAYFUN (e.g. function_handle)

                for i = 1:numel(objQueried)

                    valid(i) = hasProp(objQueried(i), propName);

                end

            end 

        case 3 % ISPROP for class - package and class name

            try

                p = findprop(findclass(findpackage(objQueried),propName),varargin{3});

                valid = ~isempty(p) && strcmpi(p.Name,varargin{3});

            catch

                valid = false;

            end

        otherwise

            assert(false); % Number of inputs should only be the above values

    end 

end