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javascriptjqueryhtmlhtml-datalist

How do I get the change event for a datalist?


I am using a datalist and need to detect when the user selects something from the drop-down list. A similar question has been asked BUT I need it so that the event fires ONLY when the user selects something from the datalist. If they type something in the input then I do NOT want the event to fire. (Notice in the accepted answer to the question I linked that they bind the input, which is not what I want). I've tried (with no success):

<datalist>
    <option>Option 1 Here</option> 
    <option>Option 2 Here</option>
</datalist>


$(document).on('change', 'datalist', function(){
   alert('hi');
});

EDIT: This question is different than the suggested question because it's a completely different question.


Solution

  • You can manually check it on change. But you need to check change of the input of datalist.

    FIDDLE

    $(document).on('change', 'input', function() {
      var options = $('datalist')[0].options;
      var val = $(this).val();
      for (var i = 0; i < options.length; i++) {
        if (options[i].value === val) {
          console.log(val);
          break;
        }
      }
    });
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
    
    <input list="ff">
    <datalist id="ff">
      <option>Option 1 Here</option>
      <option>Option 2 Here</option>
    </datalist>