jquery is checkd code example

Example 1: jquery checkbox checked value

if ($('#check_id').is(":checked"))
{
  // it is checked
}

Example 2: check whether a checkbox is checked in jQuery

if ($('#grepperRocks').is(':checked')) {
	// this checkbox is checked
}

Example 3: jquery is checked

if ($('[name="your_input_checkbox_name"]').is(":checked"))
{
  // it is checked
} else {
  // it isn't checked	
}