单击切换类

Question

I am building a FAQ, behind every question there is a '+' icon, after clicking on it the answer appears and the icon changes to a '-' icon. The problem is that when you click on the next question the icon of the previous question doesn't toggle back to the original/previous/other icon.

See example:

https://codepen.io/pixelarchitect/pen/eXLEJV

HTML

<div class="faq">
<div class="question">Q <i class="fas fa-plus"></i></div>
<span class="answer">A</span>
</div>

<div class="faq">
<div class="question">Q <i class="fas fa-plus"></i></div>
<span class="answer">A</span>
</div>

<div class="faq">
<div class="question">Q <i class="fas fa-plus"></i></div>
<span class="answer">A</span>
</div>

Javascript

$('.faq span').hide();

$('.faq div.question').click(function(e){

  e.preventDefault();

  var $this = $(this).parent().find('span');
  $(".faq span").not($this).hide();
  $this.toggle();

  $(this).find('svg').toggleClass('fa-plus fa-minus')

});

I'm using jQuery and the free version of FontAwesome for this example.

Answer 1

Using a quite similar logic as your show/hide, you can restore all svg back to plus signs, except the clicked one... See below.

 $('.faq span').hide(); $('.faq div.question').click(function(e){ e.preventDefault(); var $this = $(this).parent().find('span'); $(".faq span").not($this).hide(); $this.toggle(); // This line turns all fa-minus into fa-plus except the clicked one $('.faq svg').not($(this).find('svg')).removeClass('fa-minus').addClass('fa-plus'); $(this).find('svg').toggleClass('fa-plus fa-minus'); }); 

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <script src="https://use.fontawesome.com/releases/v5.7.2/js/all.js"></script> <div class="faq"> <div class="question">Q <i class="fas fa-plus"></i></div> <span class="answer">A</span> </div> <div class="faq"> <div class="question">Q <i class="fas fa-plus"></i></div> <span class="answer">A</span> </div> <div class="faq"> <div class="question">Q <i class="fas fa-plus"></i></div> <span class="answer">A</span> </div> 

Answer 2

You can find all the font-awesome svgs and use .addClass("fa-plus").removeClass("fa-minus") - excluding the current div's parent:

 $('.faq span').hide(); $('.faq div.question').click(function(e) { e.preventDefault(); var div = $(this).parent(); var $this = div.find('span'); $(".faq span").not($this).hide(); $(".faq").not(div).find("svg") .addClass("fa-plus") .removeClass("fa-minus"); $this.toggle(); $(this).find('svg').toggleClass('fa-plus fa-minus') }); 

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <script src="https://use.fontawesome.com/releases/v5.7.2/js/all.js"></script> <div class="faq"> <div class="question">Q <i class="fas fa-plus"></i></div> <span class="answer">A</span> </div> <div class="faq"> <div class="question">Q <i class="fas fa-plus"></i></div> <span class="answer">A</span> </div> <div class="faq"> <div class="question">Q <i class="fas fa-plus"></i></div> <span class="answer">A</span> </div> 

Updated codepen: https://codepen.io/anon/pen/EMevMz