thanx a lot, i think i’ve got it. actually, the first part of your answer does not work for me---with `add`, a new collection is returned. this breaks object identity (hence, you cannot keep a reference from another variable to the jQuery object in question once you've done `add`).
the second suggestion does work; however, the pre-incrementing index has to be written as a post-incrementing index, like this: var t = $( '.foo' ); var s = t; t[ t.length++ ] = $Q( '.bar' )[ 0 ]; // should now like like $ ( '.foo,.bar' ) assert( s === t, 'object identity broken' ) because we need exactly `t.length` as the target index, as indices start at 0. (jQuery, unlike the standard Array object, would not appear to accept assignments to unassigned indices greater than the length of the object; if done, the result is an `undefined` value augmented to the jQuery object, but the assignment’s right hand side gets lost.) thanx again! cheers & ~flow
