A jQuery plugin to show and hide follow up questions in a form. The follow ups are specified through HTML5
Include the script after jQuery has been loaded. It will check all existing form elements and automatically initilaize follow-up questions when the page has loaded.
Note: currently only
<input type="radio" /> or
<input type="checkbox" /> can have follow up
questions, visible when the input has been checked.
Markup for a single question (form input) that has a follow up question:
“sibling” assumes the follow up question(s) containers shares the same parent element.
data-has-follow-up="selector" data-target="#follow-up-question-container-elsewhere" ``` "selector" allows addressing any other `data-target="..."` container element(s) with a jQuery style selector. Markup for containers with multiple radio buttons inside: ```html data-has-follow-ups=""
Markup for a question that is
[required] when it is a follow up question. Normal
[required] attributes do not work, as they input fields are hidden if they’re not triggered as follow up questions.
Markup for the container of a follow up container
Example with a group of radio buttons
Only one of the
<input type="radio" /> buttons has a follow up question. Since they are in
the same group, they will be evaulated together. Changing from yes to no will change the
visibility of the follow up question
<p data-has-follow-ups=""> Have you ever had a close encounter with a UFO (Unidentified Flying Object)? <label><input type="radio" name="seen-ufo" required="required" data-has-follow-up="sibling" /> Yes <label data-is-follow-up="">Please explain the encounter, especially what kind it was <textarea data-is-follow-up-required="required"></textarea> </label> </label> <label><input type="radio" name="seen-ufo" required="required" /> No</label> </p>
- Use with
- Use with other
<input />types and
- Use dynamic change listener - or - expose a function to dynamically add questions with follow ups.
- Animations when showing/hiding elements.
- Package the plugin better.
Copyright (c) 2012, 2013, 2014, 2015 Joel Purra All rights reserved.
When using FollowUp, comply to at least one of the three available licenses: BSD, MIT, GPL. Please see the
LICENSE file for details.