Question

How can I select some divs with class name pattern a-<random>-c.

Answer 1

You may find useful information Here.

for your case this might work

$("div:regex(class, .a*c)").jqFunction()

for matching the starting of selector string

<script>$('input[name^="txt"]').val('content here!');</script>

this Finds all inputs with an attribute name that starts with ‘txt’ and puts text in them.

<script>
$("div:contains('new')").css("text-decoration", "underline");
    </script>

Finds all divs containing “new” and underlines them.

<script>$('[name$="address"]').val('a letter');</script>

Finds all inputs with an attribute name that ends with ‘address’ and puts text in them.

Combination of these may be helpful to you see if it helps