The second example in section 8 uses the following code:
var x = document.querySelector("#foo, #bar");
It goes on to rather explicitly state, "In the sample document above,
it would select the div element with the ID of foo because it is first
***in document order***" (my emphasis).
Nonetheless, I believe the example code could help clarify the
situation further by being changed to:
var x = document.querySelector("#bar, #foo");
This, along with the assertion that div#foo is the value of x, would
ensure that the casual reader might not mistakenly believe that the
order of selectors in a group affects the ordering of the results.
