in querySelector: how to get the first and get the last elements? what traversal order is used in the dom?

Question

in a div, have elements (not necessarily 2nd generation) with attribute move_id.

First, would like most direct way of fetching first and last elements o

Answer 1

:last is not part of the css spec, this is jQuery specific.

you should be looking for last-child

var first = div.querySelector('[move_id]:first-child');
var last  = div.querySelector('[move_id]:last-child');