rating_star/method1.html at master · kkayyoo/rating_star · GitHub

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<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Rating</title>
    <style media="screen">
        body, ul, li {
            margin: 0;
            padding: 0;
        }
        li {
            list-style: none;
            display: inline-block;
        }
        .rating {
            width: 550px;
            height: 100px;
            margin: 100px auto;
        }
        .rating-item {
            width: 100px;
            height: 100px;
            background: url(img/star.png) no-repeat;
            cursor: pointer;
        }
        .active {
            background: url(img/full-star.png) no-repeat;
        }
    </style>
  </head>
  <body>
      <ul class="rating" id="rating">
          <li class="rating-item" title="Very Bad"></li>
          <li class="rating-item" title="Bad"></li>
          <li class="rating-item" title="Fair"></li>
          <li class="rating-item" title="Good"></li>
          <li class="rating-item" title="Awesome"></li>
      </ul>

      <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
      <script type="text/javascript">

          (function(){
              //init light stars number
              var num = 0,
                  $rating = $('#rating');
                  $star = $rating.find('.rating-item');

              //light on
              var lightOn = function(num) {
                  $star.each(function(i){
                      if(i < num) {
                          $(this).addClass('active');
                      }else{
                          $(this).removeClass('active');
                      }
                  });
              };

              //init
              lightOn(num);

              //user event
              $star.on('mouseover', function(){
                  lightOn($(this).index() + 1);
              });
              $star.on('click', function(){
                  num = $(this).index() + 1;
              });
              $rating.on('mouseout', function(){
                  lightOn(num);
              });

          })();

      </script>
  </body>
</html>