JavaScript: Modify the dropdown class with a toggle option

Hi there, I'm currently facing a small issue and I could really use some assistance. I have a dropdown menu with two selection options - "green" and "blue", and I need to toggle a class based on the selected option.

If you'd like to take a look, here is the JSFiddle link: http://jsfiddle.net/K94mC/

Below is my code snippet:

$(".btn_blue").click(function() {
    $(".element").toggleClass("element_blue", 0);
});

$(".btn_green").click(function() {
    $(".element").toggleClass("element_green", 0);
});

I'm having trouble identifying where exactly my mistake lies. Any help would be greatly appreciated!

Thanks, Chris

javascriptjqueryhtmlcssdrop-down-menu

Answer №1

 <select class="dropdown">
   <option class="btn_blue" data-class="element_blue">blue</option>
   <option class="btn_green"  data-class="element_green">green</option>
 </select>

 <div class="element">Text</div>




$(document).ready(function() {
   $('.dropdown').change(function(){
      $(".element").attr( "class", $(this).find('option:selected').data('class')+ " element");
  });        
});

Answer №2

To ensure proper functionality, make sure to utilize the dropdowns change event instead of clicking on any specific option. The code snippet below can provide clarity on how to implement this:

$(".dropdown").change(function(){
   if($(this).val() == 'blue')
      $(".element").toggleClass("blue");
   else if($(this).val() == 'green')
      $(".element").toggleClass("green");
});

Answer №3

To enhance functionality beyond JQuery, utilize the change event handler to receive notifications for dropbox selection changes and retrieve the selected dropdown value:

$(document).ready(function() {
    $(".dropdown").change(function() {
        var selectedValue = $(this).val();
        if(selectedValue == "blue") 
            $(".element").removeClass("element_green").addClass("element_blue");
        else if(selectedValue == "green")
            $(".element").removeClass("element_blue").addClass("element_green");
    });        
});

Take a look at this operational demo on JSFiddle.

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