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jQuery hasClass

A Pen By sugimo

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HTML

            
              <a class="btn">No Active</a>
<a class="btn">No Active</a>
<a class="btn active">Active</a>
!

CSS

            
              .btn{
  width:200px;
  height:36px;
  font-weight:bold;
  line-height:36px;
  background-color:#eee;
  border-radius:4px;
  text-align:center;
  color:#999;
  float:left;
  margin:10px;
  cursor:pointer;
}

.active{
  background-color:#00bcac;
  color:#fff;
}
!

JS

            
              $(function() {
  $(".btn").click(function(){
    if ($(this).hasClass("active")) {
      //activeだったら
      $(this).removeClass("active");
      $(this).text("No Active");
    } else if (!$(this).hasClass("active")) {
      //activeじゃなかったら
      $(this).addClass("active");
      $(this).text("Active");
    }
  });
});
!
999px
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Console