jQuery addClass Method


jQuery addClass Method : is used to add class(es) to the selected elements.


jQuery addClass Method Syntax

$(selector).addClass(classname,function(index,currentClassName));

index: (Interger) Index of the current element in the current set.
currentClassName(String)Current Class name in the matching set.

jQuery addClass() Method Example 1

<script type="text/javascript">
         $(document).ready(function(){ 
              $( "#addClassExample" ).on( "click", function(event) {             
                $("#addClass").addClass('myclass');               
              });
               
          });
</script>

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jQuery addClass() Method Example 2

<script type="text/javascript">
         $(document).ready(function(){ 
              $( "#addClassExample" ).on( "click", function(event) {             
                $("ul li").addClass(function(index,currentClass){
                    var addclass;
                    if(currentClass == 'myClass'){
                         addclass = 'yellow-bg';
                      }
                   return addclass;
                });               
              });
               
          });
</script>

Try it »

Output

jQuery addClass Method

jQuery addClass Example


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