StatefulArray incorrect implementation of concat

[ben hockey]

calling concat on a StatefulArray? with no args will add an undefined element to the array.

var arr = new StatefulArray(['alice', 'bob']),
   copy = arr.concat();

console.log(copy); // ['alice', 'bob', undefined]

it is also not possible to concat more than one array together or add multiple elements (see ​https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Array/concat for API regarding how arrays concat multiple arguments)

a possible implementation to fix this might be

concat: function () {
    return new StatefulArray([].concat.apply(this, arguments));
}

see ​http://jsfiddle.net/neonstalwart/aqphE/ for a small test page

[Ed Chatelain]

In [30488]:

refs #16629 Support varargs in concat() in dojox/mvc/StatefulArray. Thanks neonstalwart and asudoh. !strict

[Ed Chatelain]

In [30489]:

fixes #16629 Support varargs in concat() in dojox/mvc/StatefulArray. Thanks neonstalwart and asudoh. !strict