Getting Amount Of Checkboxes Checked By Name

I'm trying to find out how many checkboxes have been checked but am having some trouble.. My checkboxes are all named delete[]. var count = ($('#form_store_setup input[name=delete]

Solution 1:

You need to escape the square brackets. Try this:

var count = $('#form_store_setup input[name=delete\\[\\]]:checked').length;

Or put the attribute value in quotes:

var count = $('#form_store_setup input[name="delete[]"]:checked').length;

Solution 2:

Simply wrap delete[] in double quotes in your second example like this:

var count = ($('#form_store_setup input[name="delete[]"]:checked').length);

Solution 3:

Assuming you do not have any other named items, that begin with delete, you can use the "starts with" matching:

var count = ($('#form_store_setup input[name^=delete]:checked').length);

Solution 4:

This should do the trick. Try adding single quotes around your input name. Also you can call .size() instead of .length for the same effect.

var count = ($('#form_store_setup input[name='delete[]']:checked').length);

See this document for reference regarding the size() function (http://api.jquery.com/size/)