How to correctly pass extra properties to clientContext.load function

I have created a generic function which returns a list with only selected properties as shown:

var getList = function (listTitle, properties) {
        var deferred = $.Deferred();
        var clientContext = new SP.ClientContext.get_current();
        var list = clientContext.get_web().get_lists().getByTitle(listTitle);   
        // This works properly
        //clientContext.load(list, 'DefaultEditFormUrl', 'DefaultNewFormUrl', 'Id');        

        clientContext.load(list, properties);
        clientContext.executeQueryAsync(
            Function.createDelegate(this,
                function () { deferred.resolve(list); }),
            Function.createDelegate(this,
                function (sender, args) { deferred.reject(sender, args); }));

        return deferred.promise();
    };

The issue is how to call this function properly. The below call only loads 'DefaultEditFormUrl'.

var ListTitle = 'myListTitle';
getList(ListTitle, 'DefaultEditFormUrl', 'DefaultNewFormUrl', 'Id')

And the below call gives error:

The query expression is not supported

var ListTitle = 'myListTitle';
getList(ListTitle, 'DefaultEditFormUrl\', \'DefaultNewFormUrl\', \'Id')