Find all radio groups which haven't been selected
- by nickf
I have a basic quiz/survey type application I'm working on, and I'd like to give the user a prompt before they submit if they haven't answered all the questions. All the questions are multiple choice using radio buttons:
<div class="question">
Q1: What is the second letter of the alphabet?
<div class="choices">
<input type="radio" name="question_1" value="1" /> A
<input type="radio" name="question_1" value="2" /> B
<input type="radio" name="question_1" value="3" /> C
</div>
</div>
<div class="question">
Q2: Which out of these is a berry?
<div class="choices">
<input type="radio" name="question_2" value="1" /> Apples
<input type="radio" name="question_2" value="2" /> Bananas
<input type="radio" name="question_2" value="3" /> Carrots
</div>
</div>
<div class="question"> ...etc
How do you find which groups haven't got an option ticked? Or at least, if there are any which haven't been answered?
jQuery is ok, and even preferred.
