css selector using Cheerio exclusion of double class

Question

I have a rather "weird" scenario (web scraping). I want to select class=g only but not those with class="g g" (double class g). How to do that in jQuery?

If I use $('.g'), it will select both .g and .g .g

UPDATE 1:

If you don't think .g .g is valid, do View Source in Google search results ;)

Answer 1

Considering the following scenario where you have two Div tag with above classes

<div class="g"></div>

<div class="g g"></div>

Write following to get only those div which have class"g"

alert($("div[class='g']").length);

Answer 2

Even if I don't think g g is valid (Let me check it)..and therefore $(".g:not(.g.g)") wouldn't work, you could do something like:

var myWeirdElements = $('.g').map(function(){return this.className.indexOf('g g') && this ;});

// or, as mentioned on the comment, using Array.filter method

demo => http://jsfiddle.net/GeAaA/

Edit: about the 2nd comment, you just have to count how many g (simple regex)