The Challenge with jQuery's Click Event Handling

I am currently working on creating a dropdown menu list with jQuery and simple CSS. I have set up a Demo where the sliding animation is functioning correctly, but I am encountering an issue where the page refreshes when the item is clicked. Here is the code snippet I am using:

<style>
.musthidden{display:none;}
</style>

<ul>
    <li><a href="#">One</a></li>
    <li id="two"><a href="#">Two</a>
                  <ul class="musthidden">
                    <li><a href="#">Two _ 1</a></li>
                    <li><a href="#">Two _ 2</a></li>
                    <li><a href="#">Two _ 3</a></li>
                    <li><a href="#">Two _ 4</a></li>
                  </ul>
    </li>
    <li><a href="#">Three</a></li>
    <li><a href="#">Four</a></li>
</ul>

<script>
 $("#two").on("click",function(){
    $(".musthidden").slideToggle();
 });
</script>

Would appreciate any insights on why this behavior is occurring.

Answer №1

Here is the recommended click function:

$("#two").on("click",function(e){
    e.preventDefault();
    $(".musthidden").slideToggle();
 });

The e.preventDefault() functionality ensures that no other functions bound to this event are executed, stopping after reaching this point. Therefore, it should not perform any additional actions afterwards.

The e represents the event object passed through the click event, with most other events also containing e.

Check out the updated fiddle without requiring a refresh.

Answer №2

To prevent the default action, utilize the function prevent.default(). Implement it in this manner:

 $("#two").on("click",function(e){
  e.preventDefault();
  $(".musthidden").slideToggle();
});

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