javascript - jQuery toggleClass to rotate 180° doesn't work

Question

I'm trying to make an image ( img tag ) rotate 180° when it's clicked.

$(document).off('click', '.taxonomie').on('click', '.taxonomie', function (e) {
    $(".chevron-occasion").toggleClass("flip");
});

.mon-plateau-de-fromages .form-plateau-fromage .chevron-occasion {
  -moz-transition: transform 1s;
  -webkit-transition: transform 1s;
  transition: transform 1s;
}

.flip {
  transform: rotate(-180deg);
  -webkit-transform: rotate(-180deg);
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="col-12 b-gold taxonomie occasion">
   <p class="number-left">1</p>
   <div>
     <p class="titre-taxonomie">Par occasion</p>
     <img src="<?php echo get_stylesheet_directory_uri(); ?>/img/icons/chevron.png" alt="chevron occasion" class="chevron-occasion">
   </div>
   <img src="<?php echo get_stylesheet_directory_uri(); ?>/img/icons/calendar.png" alt="calendar occasion" class="img-occasion">
</div>

Answer 1

If I understood your problem correctly. Here is the solution http://jsfiddle.net/xpvt214o/924105/

try this css

.flip {
  animation: animate 4s ease-in-out;
  transform: rotate(180deg);
  -webkit-transform: rotate(180deg);
}

@keyframes animate{
  0%{
    transform: rotate(0deg)
  }
  100%{
    transform: rotate(180deg)
  }
}

Also in your above code the argument 'e' does not have any functionality. So, removing the argument won't have any effect.