I am working on a plugin with quite a few options and as a consequence I am trying to keep track of a set of elements and put them in a variable. The variable cannot be empty (but that is of no concern here). Let's say there are only two options, then the variable will hold one or two elements as a jQuery object, i.e. `$("#el1, #el2")`. I tried the following, but the result of adding is still `$([])`.

```
var track = $([]);
someFunc() {
    if (option1) track.add("#el1");
    if (option2) track.add("#el2");
}

// result is `$([])`

```

Note that I don't want an array back, but a jQuery selector as I posted in the example above.