When using the onclick function, an unexpected behavior occurs where instead of displaying content, the page

Below is a summarized version of my code:

HTML

<a onclick="showHideDiv('bio')" target='_self'>
  bio
  <div id="bio" class="shadowScreen" style="display: none;">
    <p class="showBio">
      Bio!
    </p>
  </div>
</a>

Javascript:

var curDiv;

function showHideDiv(id){
  if (curDiv!==null){
    document.getElementById(curDiv).style.display="none";
  }
  document.getElementById(id).style.display="inline";
  curDiv=id;
}

CSS:

.shadowScreen{
  -moz-box-shadow: 0 0 30px 5px;
  -webkit-box-shadow: 0 0 30px 5px;
}
.showBio{
  background-color: white;
  position:fixed;
  top:50%;
  left:50%;
  transform: translate(-50%, -50%);
}

When the 'a' element is clicked, it should trigger the "showDiv(div)" function in JavaScript, changing the display property from "none" to "inline". The HTML contains a 'div' element with the "shadowScreen" class that darkens the screen. Inside this div, there's a 'p' element that centers a box on the screen displaying "bio!". However, it's currently not functioning as intended and I'm having trouble debugging it using Netbeans. Any assistance would be greatly appreciated!

If you have any questions or need further clarification, please don't hesitate to ask!

Answer №1

It is advisable to eliminate the target attribute and include "#" in the href parameter as recommended.

<a href="#" onclick="showHideDiv('bio')">Bio</a>

When it comes to your javascript code, make sure to initialize your curDiv variable with the value null.

var curDiv = null;

Answer №2

It seems like the redirection issue is likely caused by the a tag.

To fix this problem, you can update the code as follows:

<a href="javascript:void(0);"  onclick="showHideDiv('bio')" target='_self'>

Answer №3

To start off, ensure that your anchor tag has an actual link by adding the href attribute. It's recommended to use the ID of the toggleable div - like #bio - or just a simple hash symbol #.

After that, you'll want to prevent the default behavior of the anchor tag so it doesn't follow the link specified in the href attribute. To achieve this, include the following line at the end of your JavaScript function:

return false;

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